During a shower with your partner, you fart and the mist created from your fart air passing through the stream of water creates a mist that hits your partner. That receiving partner received a "copa mista"
Usage: Spouse "Did you just fart on me in the shower". Spouse 2 "Oh yea, just gave you a copa mista"
by Arizonaaloha August 8, 2015
Get the copa mistamug.