Definitions by monkey442

USB 

Un-Solicited Blowjob - When a girl (preferably) decides to suck your cock without any request, suggestion, hinting, or begging from you. A wholly independent action undertaken by a woman to put your johnson in her pie-hole.

"Dude, I was just watching the game on TV, and my sister's friend Shiela walked over and gave me the best USB!"

USB by monkey442 October 26, 2011