A phrase generally used as a threat. The origin of this word is unknown, but it is generally used from male to male. It threatens the act of homosexual oral anal sex within the straight guy community.
n. A man who cares not for pussy, and for mouth(s) only on his cock. Etymology: borrowing from pussy hound, decoupling pussy. Nota bene-- A woman who enjoys any sort of attention to her pussy is advised to avoid the mouth hound.
"Rolf is such a mouth hound! He is _always_ on the hunt for a new mouth to swallow his cock."
Man, you got those cheap shirts from the dollar store. And selling them on the internet for double the price. You tearing their mouth out.
That dude paid, $10,000 for that car with 179,000 miles on it SMH.. Yeah, he got his mouth torn out!