(Noun)
Stands for ¨Back-In-The-Day-Booty*¨; Used to describe that
nostalgic feeling when you reminisce the days that you used to hit dat ass
back in the day.
*can
substitute in other options based on the situation or context
Person 1) Hey did you see dat
girls ass?????
Person 2) Yeah we used to date for a while
Person 1) Did you
hit that?
Person 2) Yeah.
I remember that B.I.T.D.B. real well.