An ass coin is a piece of shit that has been flattened between a tight pair of ass cheeks... its the more disgusting version of anal beads.
by stfumofoz November 27, 2010
If two men are messing with the same girl and they know each other either have or had been messing the same girl. (typically, this girl is a side hoe or not very important) The two men only have been using the girl for her head and her tail, hence the name, she is a coin ass bitch.
Hitler Youth: Bruh did she really just roll up to us like that?
JMoney: Yeah bro, we know she a coin ass bitch!
JMoney: Yeah bro, we know she a coin ass bitch!
by jsavageej January 12, 2015
by Sam from Discord July 19, 2018