The drippings of alcohol that are left after butt chugging a beer!

Having sex with someone after winning Uno, and proceeding to fuck them violently

Someone who shags there partners parents

the best fuck in the world

A Dirty Kati involves one male being on the receiving end of a line of males who take turns engaging in anal sex with the first male. Once everyone has made a deposit into the Bank of Savings & Rectum, one "lucky" guy, usually celebrating his birthday, inserts a PVC pipe into the recipient’s rectum and uses it to, um, make a withdrawal.