Short for "Ba." It's when something is so badass that the truncated form of badass (ba) isn't even applicable. It has to be only uttered as "The B Word"

usually used to abbreviate the word bitch to avoid profanity, this expression can also be used by non-committals in reference to avoidance of the term boyfriend. Used in this way emphasizes word boyfriend as being more difficult to say than the word bitch, which if your a bit of a commitmentphobe who is hard-pressed for a relationship commitment is quite likely.

1.) a non profane way of saying bitch
2.) a phrase used to refer to any words starting with b to indicate a stronger connotation
3.) in the context of an airport of any government security checkpoint, the b word can and does refer to bomb

Well known verbal abbreviation of the word "bitch", but also a highly efficient financial management system called "The B Word" with the B meaning budget. http://www.thebword.com