Someone who makes you really mad or is annoying. A Bitwe will refuse to do chores even when there parents told them to.
Mom: Hey do your chores
Bitwe: NO

Me: can i use my ipad now?
Bitwe: No wait wait wait wait wait wait NO NO NO NO
Me: You bitwe!
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bitw= best in the world
b= best
i= in
t= the
w= world
CM Punk: I am the |best in the world| (bitw)
by TheBestPunkInTheWorld November 11, 2017
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Bitw comes from Family Guy, known as Bird is the word.
Peter: Brian can I see that paper for a sec?
Huh. That's odd. I thought that would be big news.
Brian: You thought what would be big news?
Peter: Well there seems to be an absence of a certain ornithological piece, a heading regarding a mass awareness of a certain avian variety.
Brian: What are you talking about?
Peter: Oh have you not heard? It was my understanding that everyone heard.
Brian: Heard what?
Stewie: Brian DON'T!
Then Peter sings bitw
by shredder499 December 26, 2009
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