Too Legit to Sit
A play off the popular number Too Legit to Quit by the preeminent MC Hammer, this phrase is used with pride by classy ladies (and some men) to describe their aversion to public toilets.

Best accompanied by a little shuffle dance
Haris Pilton, upon seeing a disgusting and desecrated stall: "OMG! I'm Too Legit to Sit, use the damn paper you rat whores!"