Top definition
A Pen gun is a firearm that resembles an ink pen. They're generally are of small caliber (e.g., .22 LR, .25 ACP, .32 ACP, .38-caliber and are single shot.
A pen gun is mightier than the sword gun.
by A R.C.D -real cool dude- February 14, 2017
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug