The act of consuming an alcoholic beverage while doing doggy style, without the consenting partners knowledge.
Lachlan: I was shagging this woman, and I suddenly felt unbelievably parched.
Thomas(50/50): Holy crap, what did you do?
Lachlan: Ripped into doggy style and flopped out for the anti-turtle.
Thomas: Nice, came up for some liquid
Lachlan: Indeed, best lager ever!