Someone who could either be a bro or chick, but you don't know till you sleep with them
Justin Beiber.... oh wait, its a chick.

Dude #1: Yo look at that weird ass chick doing the keg stand
Dude #2: Nah man, that's no chick!
Dude #1: Oh shit! Its a brödinger... I hope there's a live pussy in the box.
by BohredAsHell April 8, 2011
Get the brödinger mug.