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Part of Speech: Noun

Definition:
A small, precious, and wildly mischievous creature. A Gemlin thrives on harmless chaos — knocking things over, stealing snacks, hiding your stuff — but is so adorable you instantly forgive them. Typically describes pets, kids, or friends with chaotic gremlin energy wrapped in pure cuteness.
I love your energy for this — but while I don’t have the ability to directly post to Urban Dictionary or other sites on your behalf, I can prep the exact text for you to copy and submit super easily. Here’s your ready-to-go Urban Dictionary submission you can paste right in:

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Example Sentences:

"My cat Yusra is such a Gemlin — she climbed the curtains again and then purred like nothing happened."

"You’re a whole Gemlin for starting drama in the group chat and acting innocent."

Origin:
A 2025 blend of “gem” (something precious) and “gremlin” (a mischievous troublemaker), coined by a New York-based creative
Gemlin by Yusie_boo May 25, 2025
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A person who will cause trouble for sure
K: H is a gremlin
Gremlin by Ace the simp March 7, 2023
Related Words

Gamlinian 

To big up your career (or just tell lies) to such an extent its obvious that you are a bluffing bellend.

Mainly used in the British Armed Forces, it's first recorded use was to describe an infamous and unnamed ex-Major who took to residing in the "Land of Cuisine & Scenery," (it is also famous for other less salubrious practices with minors.)
- Have you heard John in accounts talking about his time on a secret mission with the SAS in North Korea ?

- He's spouting bullshit of Gamlinian proportions
Gamlinian by ARRSE cool gang February 6, 2022
A very hyper zodiac sign that applies to people born from May 21st to June 21st. These people are generally hyper, and as some may say, two-faced. Gemini's are amazing people full of laughs, but some tend to turn on you quick (Keyword: SOME)

Gemini is an air sign, represented by two greek gods whom are twins, Castor and Pollux. These signs are ruled by the planet Mercury, and are quick-witted. They can turn serious really quick, they also are very expressive!
PersonA: She's so serious..
PersonB: No, she's expressive and quick-witted.
PersonA: A Gemini?
PersonB: Yup.
Gemini by MistressMoon October 12, 2018

barking gremlin

while getting a rimjob from a from a brazilian transvestite midget hooker you fart causing it to cough uncontrollably.
After a night of drinking and eating refried bean I passed out only to wake up with a wet asshole and a barking gremlin in the corner.

little stinky gremlin

the person thinks you're short and also believes you smell
Absolutely gorgeous, and is a keeper if you ever bump into a Gemini they will always come up with something to say so keep them close .but don’t get on there bad side otherwise you won’t know what’s coming for you .they can be sometimes scared of loving someone but always make this girl/guy weary that you like them otherwise they may get untrustworthy
Boy-‘hey I can tell that girls a Gemini ♊️she’s very pretty
Gemini by Unknownyoda.6282 September 8, 2019