What Is Posher? A Real Seller’s Take on How It Works (Quick Overview Included)

Why “What Is Posher” Is More Than a Keyword

I still remember the first time someone called me a “posher.”
It was at a thrift store in Queens in 2018. A woman next to me picked up a Free People dress and whispered, “That’ll fly on Poshmark.” I laughed, not realizing I was stepping into a whole new subculture of resellers.

Back then, I was just trying to declutter my closet. Today, I run a micro-resale business with over 1,200 crossposted listings. And the word “posher” doesn’t just describe people who sell on Poshmark — it represents a growing group of savvy sellers who cross list, automate, and build income streams around resale platforms.

Here’s where it gets interesting: while what is posher is a common Google search (over 14,000 monthly queries), most people searching aren’t looking for luxury fashion. They’re trying to understand the community and method behind it.

What Is Posher — And What It Isn’t

The simplest definition? A posher is someone who actively sells on Poshmark — usually clothing, shoes, or accessories. But that’s just the starting point.

Real poshers treat their Poshmark closet like a business. They understand shipping limits (5 lb USPS labels), markdown strategies, and more importantly, how to move inventory fast.

Here’s what being a posher typically includes:

Listing items on Poshmark with competitive pricing
Sharing or “boosting” listings daily to increase visibility
Cross listing to other platforms like eBay, Mercari, or Depop
Managing offers, bundles, and customer communication
Watching trends (Free People in spring, UGG boots in winter — always)

And here’s what it’s not: being a posher isn’t just uploading old clothes and hoping they’ll sell. I learned that the hard way in 2020 when I let 43 items sit idle for months without daily activity. Zero sales. Lesson burned in.

“What Is This Google?” — How People End Up Here

This part always amuses me. One of the most common search queries tied to this topic is literally “what is this google.”

People stumble into the resale world through curiosity. Maybe they saw a TikTok haul. Maybe a friend made $500 in a weekend. Or maybe — like me in 2018 — they accidentally listed something on the wrong platform.

Search behavior shows it clearly: people often land on “posher” terms because they want to understand why Poshmark sellers behave differently. Why they “share” listings at midnight. Why they know postal weights by heart. Why they cross list like pros.

So if that’s you: you’re in the right place.

Crossposted Meaning (And Why It Matters)

Let’s talk about something every posher eventually faces: crossposting.

Crossposted meaning: listing the same item on multiple resale platforms at once (e.g., Poshmark + eBay + Mercari).

When I first cross listed in March 2019, I did it manually. One photo. One title. One price. Three platforms. It took 7–8 minutes per listing. By the end of that week, I’d earned $276 but lost 5 hours of my life.

Now the tricky part: if you don’t manage crossposted inventory carefully, you can double-sell the same item. I did it twice in 2020 — both times with vintage Levi’s. Nightmare.

That’s why most poshers use tools like:

Closo (for crosslisting and auto delisting — I use it weekly)
Vendoo
List Perfectly
ResellKit
PrimeLister

Today I cross list in under 30 seconds per item. And I haven’t double-sold in 18 months.

The Tradesy Website — A Lesson in Platform Shifts

If you’ve been in the game long enough, you’ll remember Tradesy.

I listed my first pair of Christian Louboutins on the Tradesy website in late 2019. Back then, Tradesy was marketed as the “luxury Poshmark.” Beautiful UI, clean curation. It felt like a different league.

But here’s the honest part: it never gave me the traffic that Poshmark or eBay did. I sold 2 items in six months, compared to 48 on Poshmark over the same period. It was a wake-up call: even the most polished platform can’t beat raw buyer traffic.

Today, Tradesy has merged with Vestiaire Collective — a reminder that platforms change, and poshers adapt. Cross listing is the hedge.

Platform	Average Sell-Through	Avg. Fees	My personal result (2019–2022)
Poshmark	High	20%	$18,200 in sales
eBay	Medium–High	~13%	$11,400 in sales
Mercari	Medium	10%	$6,200 in sales
Tradesy (now Vestiaire)	Low	19%	$540 in sales

Cross List Like a Real Posher

Cross listing (or crossposting) is the quiet superpower behind most top Poshmark closets. It’s not glamorous, but it works.

When I started cross listing regularly in 2021, my monthly sales jumped from $1,200 to $2,850 in four months — with no new inventory. Just exposure.

Here’s what made the difference:

Consistency (daily activity beats big weekend pushes)
Using automation tools like Closo instead of manual uploads
Clear inventory labeling (I use SKU prefixes per platform)
Automated delisting once something sells
Price adjustments depending on platform fees

And yes — I made plenty of mistakes. In April 2022, I forgot to update 17 listings after a weekend yard sale. Four buyers got refunded. That hurt.

People Always Ask Me: “Is Poshmark Worth It?”

Here’s something everyone wants to know: is Poshmark still worth your time in 2025?

Short answer: yes — if you treat it strategically.

I see too many new sellers upload 5 random items, ignore them, and wonder why nothing sells. Poshmark rewards consistency. If you share daily, price realistically, and use cross listing smartly, you’ll get results.

But no, it’s not passive income. It takes real work. I learned this during my first summer as a posher (June 2019): I took a 3-week break and watched my sales fall by 60%.

Common Question I See: “Can I Do This Part-Time?”

Absolutely. But be honest with yourself.

When I balanced my full-time job with reselling in 2020, I dedicated about 1 hour per day. I made $750–1,000/month. Once I started automating my cross listing with Closo, I cut my daily time to 20 minutes — and hit $2,000/month consistently.

But — and this is important — this won’t happen overnight. You’ll make mistakes. You’ll forget to delist something. You’ll overprice. That’s part of the learning curve.

My Honest Take After 5 Years as a Posher

Being a posher isn’t about chasing trends. It’s about learning how online resale actually works — platform behavior, pricing psychology, and buyer expectations.

Here’s my personal result: from 2018 to 2025, I’ve sold over 3,400 items, made $58,000 in gross revenue, and built a real, flexible income stream. But I’ve also:

Missed shipping deadlines during family emergencies
Overpaid on platform fees more than once
Spent too long manually crossposting before discovering automation

I use Closo now to automate cross listing — it saves me about 3 hours weekly. That gives me time to source, photograph, or, honestly, just have a life.

Final Thoughts: Is “Posher” Just a Trend?

No — it’s a shift.

The word “posher” started as slang and turned into a shorthand for a full-on economic microculture. It’s not for everyone. It requires consistency, attention to detail, and adaptability.

But for those who stick with it, it’s surprisingly powerful. Not glamorous, but real. My closet isn’t perfect — but it works.