stink card

When a waiter or waitress takes your credit card and instead of swiping it on the computer they run it through there sweaty butt crack.

Damn, that group at table 23 was a nightmare..
Dont worry I gave them the stink card.

Damn, are you giving that table the stink card right now?
Fuck yeah fuck those guards

Customer: do you take discover?
Server: (gives them stink card) I'll show you the card that pays you back!