When a girl is all over a guy, it can be referred to as " That girl is all up on his jock" Jock meaning "dick"
Jaden: Oh my god logan is so sexy like omfg I was wanna hop on him and fuck
Logan: Bitch I got a girlfriend
Shana: Yea why are you all up on his jock
Logan: Bitch I got a girlfriend
Shana: Yea why are you all up on his jock
by TrojanOG October 27, 2013
The act of trying to flirt with someone extensively, what one who is tyring to flirt does to the one who is being flirted with.
"That chick we met last night was all up on my jock, yo." (That girl we met last night was shamelessly flirting with me.)
by Kelly McMuffin September 30, 2004