Abbreviation for "Roast Beef Dangler." Used most commonly to ridicule someone regarding their overall level of uselessness. Derivations and alternatives include the noun "Dangler" or the adjective / verb "dangling." Can be modified to include any number of new forms, such as dangle-box, etc.
"What are you up to, R.B.D.?"
"Hey dangler, you wanna go to the bar tonight?"
"When are you going to get your dangling ass over here so we can leave?"
"Hey dangler, you wanna go to the bar tonight?"
"When are you going to get your dangling ass over here so we can leave?"
by Mitchellson September 07, 2008