To drink liquor straight from the bottle, instead of pouring into a shot glass or mixing it with another drink like a normal person would.
Person A: (refering to half bottle of bacardi 151
) Dude, you could totally finish that right now! Just lizard lip that shit.
Drunkard: Hahaha no way, there is so much left in there! Blargh!
Person A: (to self) Foiled again!