when a male's penis is so small that the person giving him a handjob has to make a handgun symbol with their hand and use only the pinky and ring finger to jack them off.
The Handgun (Verb). To insert both your index and middle finger into a woman'svagina and place you thumb on her clit, thus making a handgun shape with your hand.
In LOST, when a character places a handgun in the back of their pants, they risk exposure of fecal molecules to the gun. Later handling of the firearm could then spread said fecal matter to hands, and in turn to eyes and/or mouth, causing illness or infection.
Kate:"Wow, Sawyer, looks pretty sick after waving his gun around."
Jack:"I think we have an acute case of Poopy Handgun Syndrome on our hands. Literally, on our hands."
Kate:"Gross. I'm not banging that dude in the bear cages again. How do you know it's PHS?"
Jack:"Cause I'm a God Damn Doctor, that's how!"
A lesbian handgun is a sexual move performed by a lesbian couple. When performing this move during sex, the girls make a handgun shape with their index and middle fingers and jerk each other off in the vagina.
Tina and Devin got fired from their jobs because Karen caught them doing the lesbian handgun in the women’sbathroom and ratted them out to HR.