A physical or personal/social characteristic which necessitates a loss of points on the physical/social attractiveness scale (as figure skaters receive deductions for errors in their routines)
Super butt and danced it off, but talked about herself all night and hasn't brushed her teeth in a week--major deductions.
1) An idea formed by deducing.
1) I made the deduction that somebody had stolen my goldfish for revenge after putting the clues all together.
2) The ten-point deduction in round two really stomped out his internal fire; he just played the rest of the rounds out after that and took the loss.