A fork of Rural Dictionary
abbr. Bulletin Board Back Door verb A double entendre referring to the killing of, or stealing from, the character of a close friend on a bulletin board system door such as Legend of the Red Dragon or Usurper. BBBD-ing was responsible for a wave of Jr. High and High School fallings out among certain social circles throughout the 1990's.
I'm going to need my Magic Cards back, you totally BBBD'd me last night. I can't believe I gave that guy the phone number and then he BBBD's me.