It's when you are really going for it - whether it be at work (doing a big deal, showing your expertise or kicking somebody's ass who made you mad) or showing off at Sports or with the opposite Sex.
You're showing the world that you are the man (or wo-man)...
... oh man, did you see Benoit at Crossfit yesterday. He was REALLY CROC'ing out!
.. Hey, you ready for the meeting? Hell yes, let's Croc Out!
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).