jiggle physics

Noun

 * 1)  The art of portraying the bouncing or swaying of breasts on a 3D model of a woman.
 * 2) * 2008, Complex Magazine and Guide, Volume 7, Issues 1-3, page 178:
 * As devotees of advanced jiggle physics, we cannot condone any fighting game in which the biggest boobs belong to an unemployed plumber.