WTB
Acronym stands for "What the Blood!?"

Can be used interchangeably with "WTF"
Definition: Explains sheer confusion or aghast.
Tyrell: "Yo Tyrone, I tried what you said, I smacked Laquisha in the face with my cock.  Dude, you lied, she didnt like it all, she punched me!"

Tyrone: "WTB!??!"