The shape your mouth makes when it's go a cock in it; a cock sucker. A phrase commonly heard on the Bubba the Love Sponge Show - Sirius satellite radio on Howard 101.
That guy was such a jerk that he should be a candidate for round mouth of the day.
Hey man, why are you trying to fag me out all the time. You're such a round mouth.
Hey man, why are you trying to fag me out all the time. You're such a round mouth.
by Roundy February 23, 2008
by Mr. Moo Bovine August 19, 2007
The lower mouth, which does most of the talking after the upper mouth is fed too many gas-inducing foods.
by Tom Simon December 1, 2006
by PorkChopSandwiches February 28, 2008
noun. Term used to describe a person who sucks dick. Describes the shape of their mouth while sucking dick.
by The Ultimate Ranger February 8, 2009
Rhonda Round Mouth does not refer to any specific individual. Rather, Rhonda Round Mouth is a slang term which may be used, at will, to reference any female that is known to be a frequent provider of fellatio. The term Rhonda Round Mouth implies that the individual provides so much oral sex that their mouth is literally in a constant state of being open and round because of the constant inhalation of cock.
Bill: Hey dude have you heard about Sonja in the accounting office?
Roger: Yea, you mean Rhonda Round Mouth.
Bill: That's the one!
Roger: Yea, you mean Rhonda Round Mouth.
Bill: That's the one!
by Eaton Holgoode March 3, 2014