A backstabber or a biter. A snake.

A person who is musically challenged.

A person who thinks they are all that and is very extra.
Example 1
Person 1:Did you see that girl flirting with the other girls boyfriend?

Person 2:Yeah she's such a Mearah

Example 2
person 1: Ugh did you see that person? She was being so extra and singing off tune... such a Mearah
by newspaperhater November 27, 2010
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A biter, a backstabber and a snake. Prone to hitting on the guy you like, can't sing but believes she can.
I just told her I liked him and now she's fliritng with him!" "WHAT A MEARAH!
by Elle.Oh.Elle. November 27, 2010
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