Definitions by SSBB Archangel

bonus damage 

Damage incurred while there is a difference in the lives of two characters in a stock round of super smash brothers.

Link is playing Kirby on final destination. Link has 3 lives, and he kills Kirby leaving Kirby with 2 lives. Link racks up 43 damage before he is killed. Now they both have two lives, but Link has 43 bonus damage on Kirby.

bonus damage by SSBB Archangel August 10, 2009