Top definition
1) A person with teeth that havn't fully grown out of their gums yet giving the impression they've been hit in the mouth by a machete cutting off their teeth in a straight horizonal line with surgical precision.

2) A person with too many metal piercings in their face looking as if they where too close to a grenade when it went off piercing their face with shrapnel(that can later be melted down to make a machete), making them seem as if they've got a bigger more annoying grin or smile.
Biff: Hey Jeff, this is my friend Heff.
Jeff: Nice to meet...woah dude thats up with your teeth!?
Heff: I've got Machete Mouth Syndrome.
Jeff: Shit dude! You ever heard of Ribena Tooth Kind!?

Greg: Hey dude the chick I was railing lastnight was so wild until she smiled at me dude...serious Machete Mouth goin on there.
Mike: Shit man...did you nail her anyways?
Greg: YEAH DUDE!
Mike: AWESOME Your sweet man!

Peter: Did you see that guys face? It was full of metal what was wrong with him?
Henry: Machete Mouth...a serious case!
by Johnny Hurts April 09, 2006
Get the merch
Get the Machete Mouth neck gaiter and mug.
Jun 4 Word of the Day
The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.
"My visit home turned into Bisexual Groundhog Day. My mom acted shocked when I told her I'm going to Pride next week, so I had to come out to her as bisexual AGAIN."
by Tiggy Upland April 15, 2014
Get the merch
Get the Bisexual Groundhog Day neck gaiter and mug.
2
1) A person with teeth that havn't fully grown out of their gums yet giving the impression they've been hit in the mouth by a machete cutting off their teeth in a straight horizonal line with surgical precision.

2) A person with too many metal piercings in their face looking as if they where too close to a grenade when it went off piercing their face with shrapnel(that can later be melted down to make a machete), making them seem as if they've got a bigger more annoying grin or smile.
Biff: Hey Jeff, this is my friend Heff.
Jeff: Nice to meet...woah dude thats up with your teeth!?
Heff: I've got Machete Mouth Syndrome.
Jeff: Shit dude! You ever heard of Ribena Tooth Kind!?

Greg: Hey dude the chick I was railing lastnight was so wild until she smiled at me dude...serious Machete Mouth goin on there.
Mike: Shit man...did you nail her anyways?
Greg: YEAH DUDE!
Mike: AWESOME Your sweet man!

Peter: Did you see that guys face? It was full of metal what was wrong with him?
Henry: Machete Mouth...a serious case!
by Fanny Hurts May 02, 2006
Get the mug
Get a Machete Mouth mug for your sister Sarah.