I don't know why you were looking up "styrofoam cups" on urban dictionary but follow @styrofoamcupz on instagram k bye
by Recordlove1701 December 15, 2015
the act of calling someone a stupid fucking Styrofoam cup, which means that they take up space and do nothing
person 1: hey man i think wall-e was a terrible movie
person 2: go fuck yourself you stupid fucking Styrofoam cup
by moth211 June 23, 2022