an alternative for "kick you ass" or the likes. Derived from a moment in architecture studio, when one threatened to smash the model church another student had spent 12 hours making.
Two girls, or hos(plural), who simultaneously engage in coitus with two Smash Bros (see Urban Dictionary Definition); the girls may or may not be playing Super Smash Bros at the time of coitus.
Logan: Are those them two smash hos we tagged teamed the other night?
Jeremy: Damn straight! When we fucked them I got my high score on Smash Bros.