The
letters of B.L.B. each stand for a different word. The first 'B' stands for
butt-hole, the 'L' stands for licking and the second 'B' stands for Bitch. In short, B.L.B. is an abbreviation for '
Butt-hole Licking Bitch'. It can be used as a compliment or insult depending on what turns you on.