Coacka is commonly used in China to describe the miniscule cock of the asian man. In other circles it descibes the peonis that is utilized in a dirty Sanchez as well as a Donkey Punch.
Man, That asian has a massive coacka. That's not saying much!
Dude I gave her a dirty Sanchez, "Using my coacka of course!"
You hear about that new movie i heard she died not from the donkeypunch by the guys coacka
Hey my coacka doesnt feel right in this vagona