A now-closed drinking establishment formerly located in the East Village neighborhood of Manhattan. It was widely considered to be New York City's premier location for getting yourself stabbed or picking up a communicable disease.
Guy 1: After the Mars Bar, then what?
Guy 2: The doctor.
a mars bar is when a man puts his cock into a girls vagina and when he pulls it out its covered in shit and cum. most people also like to lick this for extra pleasure!
dude i have a mars bar right now from this hairy fat chick...