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.