When someone hits something really hard, sometimes used in cricket matches when a batsman proper smashes the ball. I think it originates from the old batman show when they had fights with the bad guys. Sometimes words came up in bubble writing when someone got hit, an one of the words the used was biff.
1. to be proved wrong when previously displaying a cocky attutude of being right.
2. Generally humiliated in some pride-before-a-fall kinda way
3. to be disappointed, gutted etsech
John was well biffed yesterday cos he asked Kayleigh out and she told him to fook off.