When ever you are sitting down, and someone walks behind you and hits your back. Happens in very large, crowded areas. Pertains to mainly cafeterias.
I've been back raped 4 times now. That one girl won't stop getting up and sitting back down.
by pleasestopthenoises April 30, 2009
1 more definition
When being shot at or killed from behind in FPS games. An extremly annoying feeling when a player who is a rookie or a pussy sneaks up from behind. Very often cause for raging and rage-quiting if done frequently.
Josh (monologue): You fucking pussy! That's a back-rape! Face me like a man, you fucking back-raping ape!
by FridgeMidget December 02, 2013