1: When you place your scrotum between your legs(similar to the goat) and tea bag ( or as the name implies, dipping your scrotum into ) a usually sleeping person's mouth in that position.
Guy 1: Hey mark is passed out, and with his mouth wide open!
Guy 2: Dude you thinking what I'm thinking?
Guy 1: Oh yeah dude, he's getting the Irish dipper tonight! You do it dude
Guy 2: No way im not sticking my nuts in another dudes mouth you do it!
Guy 1: Alright fine....
Mark: What do I have pubes in my mouth?
Guy 2: Hahaha dude, you got the irish dipper!
Guy 2: Dude you thinking what I'm thinking?
Guy 1: Oh yeah dude, he's getting the Irish dipper tonight! You do it dude
Guy 2: No way im not sticking my nuts in another dudes mouth you do it!
Guy 1: Alright fine....
Mark: What do I have pubes in my mouth?
Guy 2: Hahaha dude, you got the irish dipper!
by Matt Vickers October 1, 2009