A person or persons who are afflicted with the infamous "doesn't stop talking" disease, otherwise known as Warren Sapp disease.
Quit yer flapjaw.
by Bob Smiley December 15, 2003
Top Definition
A male or female who's jaw dislocates multiple times while performing oral sex.
Carl: What happened to you last night?
Frank: Picked up a hooker for a little blow and go.

Carl: How was it?
Frank: Rough. Bitch must of had her jaw busted by her pimp. She was a Flap Jaw. I kept thrusting it out of joint.
by Harry Klam May 03, 2015
A male or female who's jaw dislocates multiple times while performing oral sex.
Carl: What happened to you last night?
Frank: Picked up a hooker for a little blow and go.

Carl: How was it?
Frank: Rough. Bitch must of had her jaw busted by her pimp. She was a Flap Jaw. I kept thrusting it out of joint.
by Harry Klam May 03, 2015

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