What is That's A Yo!?
1.
Used as "That's a win!" or "That's a score", the yo replacing whichever word signified victory. Often used as a more humerous way of saying "owned" in
{TC}Nubler Kreiger: What? I didn't even see him and he shot me!
<LOL>Nice Guy Eddie: Where's the reg?
(BoM)UnknownAtom: That's a yo!
See