A person who spends time drinking heavy amounts of vodka and tries to convince you they know what they're talking about.
DRUNK: "I'm a zombie and I will punch you in the butt with my middle finger and it'll bleed"
SANEONE: "Uhm, you don't know what you're talking about"
DRUNK: "YES I DO, STOP TELLING ME THAT I EVOLVED FROM A PIECE OF CRAP FROM A TOILET!"
SANEONE: "You're such a Chrome dart"