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.:

Man Jaw by SMJezus August 23, 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

Man Jaw Syndrome by puertorican120 June 29, 2011

manjaw 

a female whos jawline is so hideously large and unattractive that she looks like a man.

Holy cow! Check out the manjaw on that girl! It's huge!

manjaw by mimi1201 October 24, 2008

ManJawlina HOlie 

A common nickname used for the overrated phenomenon that is known as Angelina Jolie. The term is derived from the potent, dangerous weapon she carries above her neck. It has been said that HOlie forces men to have sex with her by threatening to kill them with her massive manly jawline if they don't heed to her sexual demands. It has also been rumoured that construction workers would borrow Jolie's ridiculously masculine, square jaw on off days as a bulldozer during construction work.

Other characteristics that define ManJawlina are her crusty, anal-sphincter gumpy shrivelled lips that look like chewed up oranges, huge bulbous forehead with a protruding, pulsating vein, see through, paper-thin pasty pale skin and huge bobblehead that is way too big for her body.

Other common names are Adoptalina HoLIE(because she lies and contradicts herself all the time), Whorelina(because she sleeps around), Skankelina, MANgelina(because she looks like a man.

ManJawlina HOlie will beat an animal to a pulp...with her jawline..

ManJawlina HOlie by ScrappyDooKillYoo May 6, 2008