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1 definition by stfuyoufuckingbitch224

 
1.
A person who tries to be like everyone else and epically fails. Someone who thinks that looking like a barbie doll is "cool" or caking makeup on their faces makes them look any better. A person who pretends to be someone they're not.
For example, Miley Cyrus is a poser because she pretends to be someone who doesn't even exist and then goes around kissing every co-star she gets (which makes her a slut).
by stfuyoufuckingbitch224 February 28, 2010