A gentle swing of your hand onto your partner's soft, tender butt cheek. Can be used to incite arousal and avoid major wrist damage from overpowering your spank.

1) Simply shape your hand into a cupped gesture.
2) Lightly up and cup the skin. Your partner should be fully relaxed so the glute jiggles with each swipe.
3) The skin will begin to tingle as the blood rushes to the surface.
4) Alternate cheeks for maximum sensation.

BONUS: Surprise your partner with an occasional power spank in between your up and cups. There might be a squeal!

To refill your cup with preferred alcoholic beverage of choice

an enquiry about the possibility of shenanigans with the opposite sex

In beer pong or similar drinking games, the fuck-up cup is one cup which has substantially more beer than all the others. This often causes the partner of the pourer to argue that they don't have to drink it when that cup is taken during the game.

The plain indiscrete cup you fill with your favorite adult beverage to consume while you walk from your tailgate gate location and the concert event entrance.

Cup 7 nutsacks in a row without breathing