Man Jaw

When a chick has very distinct jaw bone, causing her to have a unattractive appearance.

"Damn Steph have a major case of Man Jaw."
"Hell yeah, dat bitch is ugly.:

by SMJezus July 27, 2008

Man Jaw Syndrome

or "MJS" for short.
Condition in which a female has an abnormally square/manly jaw.

Emily Deschanel (from the TV series, "Bones")

Jim: goddamn homie, she's fine!
Tim: yeah, but she's got a serious case of Man Jaw Syndrome
Jim: shitbiscuits, you're right
Tim: you bet you're black ass I'm right

by puertorican120 June 28, 2011