The shitty feeling after one tailgates for a prolonged period of time. Usually followed by common symptoms of headache, nausea, dehydration, short-term memory loss, and AIDs (Alcohol Induced Diarhea).
Not unusual to wake up with unexplained bumps, bruises, cuts, and empty condom wrappers spread throughout the site of infection.
Jacks: Dude I feel like such shit.
Rich: I know, I feel like a midget snuck in my butthole and punched my liver.
Rezi: Did we even go to the game? I remember seeing a football... I think.
Alex: Faggots, text book tailgateitus. Grow the fuck up, especially that D-Bag Jacks. What a bitch.