Donut

Donut is when you feel the urge to nut on your friend's doughnut.

Friend1: ewww jason why is my doughnut filled with your sperm.

Jason: sorry I had a donut.

The Beard Principle

If you kissed, your facial hair will start growing faster and stronger.

Man 1: wow! Since when u gout this beard?
Man 2: oh I've kissed last week
Man 1: oh, so it gotta be The Beard Principle!