2. the art of hitting someone in the testicles, usually by slightly knocking the balls with a knuckle or two and pulling back the hand quickly.
I was arrested for tipping the police officer when he tried to write me a ticket.
After he was tipped by the man with steel toed boots, he was never able to have children.
Usually the majority of a server's income comes from tips, therefore a large tip is looked on with happiness, whereas a bad tip will criminalize you to the server, bartender, bus boy, and hostess.
Hostess: Damn them to hell!