A penjamin is slang for a cart pen — a pen-shaped battery with a cannabis oil cartridge screwed on top. The name is a play on Benjamin, because the device looks like an ordinary pen and sounds like an ordinary guy.
If you've heard someone ask where Penjamin went, they weren't looking for a friend. They were looking for their vape. Here's where the term came from, what actually counts as a penjamin, and what to know before you make one your daily driver.
Where the Word Penjamin Comes From
Penjamin is internet-born slang. Give the pen a human name and you can talk about it anywhere — at dinner, in a group chat, around people who don't need details. "Has anyone seen Penjamin?" flies in places where "where's my weed pen?" does not.

The nickname stuck because it's funny, and because the disguise is real. Most cart pens genuinely pass for a writing pen or a USB drive at a glance. Variations like "cart pen" and "Penjamin Franklin" float around too, but they all point to the same thing: a discreet, pocket-sized cannabis vape.
What Counts as a Penjamin?
Technically, any pen-shaped cannabis vape earns the name. In practice, people mean one of three setups.
510-Thread Battery and Cart
The classic. A slim rechargeable battery with 510 threading, plus a cartridge filled with cannabis oil. Carts are swappable, batteries are reusable, and the whole thing disappears into a pocket.
Disposables
Battery and oil sealed in one unit. Zero maintenance, zero learning curve, and a lot of e-waste. When it's done, it's done.
Pod Systems
Proprietary pods that click into a matching battery. Sleeker than a 510 setup, but you're locked into one brand's pods and one brand's pricing.
Why People Love Them

Penjamins are popular for good reasons. They're discreet — minimal odor, no smoke, no rolling. They're instant — press a button and go. And they're consistent — the same pull at the start of the cart as at the end. For a lot of people, a cart pen was their first step away from combustion, and that's a step in the right direction. Vapor is easier on the lungs than smoke, full stop.
The Catch With Carts
Here's what the nickname glosses over: what's inside the cart matters more than what the pen looks like. Most cartridges run on distillate — cannabis oil that's been stripped and refined until little of the original plant character remains. Flavor gets added back, sometimes from cannabis terpenes, sometimes not. In unlicensed markets, carts are also the most commonly faked product on the shelf.
If you're going to run a penjamin, buy from licensed retailers and check the packaging for test results. A cheap cart from a gas station is a gamble on your lungs — and there are fewer pyrolytic toxins in vapor than smoke only when the hardware and the oil are legit.
Beyond the Cart: Heat-Not-Burn
If the appeal of a penjamin is convenience without combustion, carts aren't the only way to get there. The Odin is a portable, flameless device that heats real flower and real concentrates with precise-temperature air. No flame, no burning, no oil of mysterious origin — just the plant, warmed instead of torched.

Pair it with a Nano Joint, a pre-dosed flower stick, and you skip grinding, rolling, and packing entirely. Insert it, heat it, inhale it. Prefer concentrates? The Dab Stick is a pre-dosed rosin stick for the Odin — the easiest dab you'll ever take, no rig or torch required. Either way you're consuming actual flower or solventless rosin, not refined oil, and producing fewer harmful byproducts than smoking. Get baked, not burnt.
Caring for a Cart Pen
If Penjamin stays in the rotation, treat him right. Store the pen upright so oil doesn't pool against the coil, keep it out of hot cars — heat thins oil and floods airways — and charge with the cable it came with, not whatever brick is closest. Run the lowest voltage that still pulls; scorched distillate tastes like burnt popcorn and wastes the cart. And when a cart clogs, warm it in your hands and take a few dry pulls before you crank the voltage. Most "dead" carts are just cold.
Penjamin Etiquette, Briefly
The rules are short. Don't hit someone else's Penjamin without asking. Don't ghost the rotation with it. And don't assume discreet means invisible — vapor has less odor than smoke, but it isn't nothing. Read the room like an adult.
FAQ
What does penjamin mean?
Penjamin is slang for a pen-style cannabis vape — usually a 510 battery with an oil cartridge, or a disposable. It's a play on the name Benjamin, chosen because the device looks like a regular pen.
Is a penjamin the same as a dab pen?
Not quite. A penjamin usually refers to a cart pen filled with cannabis oil. A dab pen vaporizes concentrates like wax or rosin that you load yourself. Same shape, different fuel.
Are cart pens better for you than smoking?
Vaporizing produces fewer pyrolytic toxins than combustion, so vapor is easier on the lungs than smoke. Quality matters, though — that comparison only holds with tested, licensed products.
What's a good alternative to a penjamin?
A heat-not-burn device like the Odin gives you cart-level convenience with real flower or rosin instead of refined oil — no flame, no combustion, and pre-dosed sticks that require zero prep.
Ready to retire Penjamin? Meet the Odin — flower and concentrates, one flameless device.