What is I'm Just Pissing On Your Tits?
A hilarious variation of "I'm just kidding" or "I'm just pissing around".
Except with a lot more awesome.
Callum: I'm your dad.
Fingers: WHAT?
Callum: Don't worry, I'm just pissing on your tits.
Fingers: Oh.
See joke, tits, piss, fingering, lmao