A half cocked jaw. To give someone a look of disgust. Resembling a confused turtle about to gasp for air.
Sir McNutley gave me a turtlemouth when I told him King Longshanks would not succumb to his advances. Even after offering 10 Shillings.
by Brentus July 26, 2005
1 more definition
Term used to describe people of Greek origin.
John Stamos from "Full House" is Turtle Mouth.
by ??What?? November 29, 2010