A person who is a chameleon and can be your very best friend in the world. This person is so good they will practically become you. All your likes, dislikes, music tastes, books everything you do they will do to mirror you and trick you into believing imitation is the sincerest form of flattery. Once they get a new person to emulate they will turn everyone against you and behave as though it was you being the bad guy all along. This type of person is two-faced a liar and money hungry. Typically they learned it from their parent who is also the exact same way. A real slimy lizard. A Chamelon/A Chelsea is not to be trusted.
"Omg he/she is such a Chelsea do not trust her/him"
by Theresa Delgado December 9, 2017
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Jealous on many occasions, cold-hearted, deceiving, but be that as it may, Chelseas can also be good-natured, kind, loving, and some of the most affectionate people you know. The kind that obsesses over shows and rewatches them six times, the kind that twists a story to make their friends laugh, the kind that loves unconditionally, but in the back of their mind also wishes they could drop their friends suddenly, seeking lots of attention, but knows that no one would care or even bother to get her back. Pathological liars and attention seekers, but also loving and affectionate friends.
by charlesdickensonthethird April 24, 2021
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an idiot that doesn’t know when to stop bothering people because she wants attention but doesn’t know how to properly ask for it.
person 1: wow why is she acting so pissy today?

person 2: well she’s chelsea
by urmomspickle October 1, 2019
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1. When you knock something over, break something, and/or hurt yourself out of pure clumsiness.
2. When you obsess over the grammar of a piece of writing so much that you don't pay attention to the content itself.
3. When you mishear a word someone says, thinking they said something dirty.
1. "Shit, I spilled my drink and now my computer's soaked. I totally just pulled a Chelsea."
2. "Sorry, I'll read your email in a minute - I'm pulling a Chelsea right now. I just need to print it out and highlight all of the grammatical errors first."
3. "Did that news anchor say 'penis' or am I just pulling a Chelsea?"
by Cornelius P. Smear III June 12, 2020
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Boots that Harry Styles wear and when asked about it, heart rate rises to 102 when the steady beat is 67
Dude 1: Your wearing Chelsea boots?
Dude 2: Yea I was inspired by Harry
by midnightmemories December 15, 2019
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