When you do are doing something amazing and everybody admires you for it.This can be done while drinking and partying or in sports and video games.Also it can be when your bud is doing something for your benefit.
Look at that kid, hes just champin it over there, hes probably drank like 15 beers and hes still givin er.
That kid just champed it and jumped on the fumble.
I'm just champin it right nao i got a running riot.
Hes definitely champing it, he took the fat chick while i got her hot friend, way to take one for the team.