badafucup 

quite simply it means back the fuck up!

Yo son, unless you tryin to get snuffed you betta badafucup

badafucup by CRAZYwordCRACKER March 13, 2009

bacdafucup 

Might thou'st courteously refrain from my vicinity. T'would be humbly obliged.

Wiggity Weiner: "Uhmm.. please place yourself at arm's distance from me..?"

bacdafucup by sux0r September 6, 2003

bacdafucup 

back the fuck up

Yo bitch bacdafucup aight step back

bacdafucup by Ripper June 24, 2003

bacdafucup 

Get out of my face. Wait a minute, pinhead.

Bacdafucup, bazooka breath!

bacdafucup by harry flashman July 10, 2006

bakdafukup 

Used typically when a foe may step to close ie on my nice new creps

Man 1: Come on then biatch!

Man 2: Yo mutha fucker, bakdafukup

bakdafukup by Alex April 24, 2005