A word that resembles the sound a whip makes. Guys use the word either in front of or behing the back of a friend who is in a relationship to express how the friend is whipped by his girl.
Often is accompanied by a hand movement that resembles the cracking of a whip..
Bro 1: Hey bro do you want to watch the game tonight with me and the other guys?
Bro 2: I can't man. I promised my girl that I would take her shopping and then go to a jewelry show.
Bro 1: Whit-cheee!