Skeefing is when you get hit in the balls so hard you lie on the ground and scream/breathe, skeef
Man1: “ dude did you see John get skeefed today?
Man2: “ no but is he okay?”
When you get into trouble and that one person; usually very loud and obnoxiously says “OOOOOOOOOOOO” and proceeds to look like a dumbass
Guy1 “I was in class yesterday and Jacob flaffed at me”
Guy2 “dude I hate people who do that”