pistol grip pump 

A sawed-off shotgun, retrofitted with a handle at the stock. Note: the gun must be a 12 gage pump to be an official pistol grip pump. Originated in Detroit on the south side alleys.

Riding in J's 64 Impala, I held the pistol grip pump on my lap at all times, waiting for suckas to play with my shit.

pistol grip pump by Slippy Steve February 15, 2005

pistol grip pump 

the act of anally fisting a mans ass while jacking him off. as if you are shooting a pistol grip pum shotgun

that guy is a freak he likes to get pistol grip pumped

pistol grip pump by victhespic July 17, 2011