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1.
noun.
boobs that move vigorously when jumping or fighting.

originated in soul calibur 2, from the fighter, taki, because the makers of the game obviously imlemented a physics engine to accomodate for her boobs swaying to and fro.
look at the physics engine on that girl!
by brad kester March 02, 2006

Words related to physics engine

boobs bosoms breasts fighting hoo-hoo's rack soul calibur 2