When you sniffcocaine with your urethra.
Only real G‘s are able to do this.
„Yo dealer, give me this good shit, I‘m gonna cockaine it.“
„Damn dawg, you really cockained from your sisters stomage?“
„Son, why is there white dust at your dick? Please don‘t tell me that you‘ve cockained?“
„Nah, don‘t worry mum, i‘m keeping those drugs for my friends“
A slut who takes drugs (predominately cocaine This is taken as a line off of a man's penis / mid-blowjob), this act can also be the name of taking drugs whilst having sex.
Guy 1: Wow, I fucked Beckyso hard last night. Me and George let her do Cockaine.