A gremlin is someone who is deceivingly cool. She seems like someone you would really like to know, but once you do, you regret it instantly. She is shockingly good at Facebook stalking, and will find your parents' names and hometown within minutes. She also knows an uncanny amount about the inner workings of the mafia. She lurks around the halls looking for candy corn, and her favorite catch phrase is "teeheehee". On halloween, she turns into a spooky ho and dances on elevated surfaces.
"Dude, did you see what Gremlin sent in the group chat last night?"
"Yeah man, how did she find out your aunt's name is Mary?"
"I have no idea."
by cami151 November 10, 2019
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A girl that seems very attractive and cute until the "brightlights" come on at the club and you realize that she is a horrible disfigured monster.
I was talking to this bitch at the club and then the whoa lights came on and that bitch was a Gremlin.
by dirkdiggler9969 April 24, 2009
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A girl or guy that seems perfect (warm, cuddly), but has a dark side (cold, scaly) lurking underneath. This dark side may come out during drinking sessions (i.e. "fed after midnight") or at unpredictable times.

A gremlin is extremely dangerous because friends may see him/her as great, but behind closed doors s/he turns into a monster, leaving you defenseless and alone against their manipulative power. Dating a gremlin is a very, very dangerous thing with long-term consequences. However, sleeping with a gremlin can be a very enjoyable experience.
Roommate: "Why would you ever break up with that girl Kaylee? She was great!"

Gremlin's ex: "She was total gremlin. While we were dating, she sprayed pepper spray at me, made a pass on my best friend, punched me in the face, and even fucked a freshman!"

Roommate:"Really? Holy shit! She even made us all brownies! You should have said something. Fucking gremlin..."
by gonclif October 1, 2007
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The act of crushing someones head inside of your butt.
"Gremline!"

"MMF!"

"FATALITY"
by UbEr1337gUy January 15, 2007
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1. A person who is deceitful.
2. Likes to talk as if s/he knows a lot but always gives the wrong information.
3. Very sneaky in nature who usually appears and vashines when you don't expect it.
Keith: Where's that gremlin? He's suppose to give you guys a ride.
Andy: I don't know, he's probably off eating some chipmunk food.
Keith: Ohh that gremlin!
by clypp February 14, 2004
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1. A stud who is capable of running a 4.4 40 yard dash. Usually after smoking a carton of cigarettes.

2. The act of sucking down a single cigarette in 13 seconds. Usually performed for an audience of people.
"Dude, did you see Chris? He totally just Gremlin'd that 40 yard dash"

"Bro, there's no way, he's just a little gremlin!"
by Jameswest33 March 30, 2010
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I messed around

with her but you turned into a gremlin I couldn't get her wet
by Greennuns69 November 10, 2016
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