Verb. A word used in the Northern part of Illinois to describe happiness and satisfaction with a party. Typically yelled while extremely drunk. Proper party codes states that after any cool member of a party exclaims "Clink it up!!!" Everyone should hit their cups, bottles, or cans together in agreement.
Eliott - Holy shit man this party fuckin rocks!!!!
Andrew - Fuckin Clink It Up!!!!!!!!!!