What does NBSB mean?
No Boyfriend Since Birth
Other definitions of NBSB:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of NBSB that should be included here, please let us know.
How to use the term NBSB:
There are no example uses of NBSB at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

FLAKE OUT
Cancel at the last minute

OML
Oh My Legs

ILYLAFKLC
i love you like a fat kid loves cake

IABW
In A Bad Way