2) Someone who will take everything you own out of your backdoor while your away on hoildays, most likely a friend or family memember
3) Used to make fun of friends
2) "My fucking T.V. is gone.... Fucking Backdoor Bandits
3) "Karl, your dumb as shit, you fucking Backdoor Bandit"
-"I don't know man, but I do know that I'll be knocking on you-know-who's backdoor later."