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1.
CTW
Cock Teasing Whore: A girl or woman who dressess very provactive(aka slutty) and flaunts it all but never gives out and is a general cock tease.
Hey Jim did you see that CTW, she looked like a daddies little girl kind.
by John April 05, 2005
 
2.
CTW
means change the world (get high)
lets go change the world
by phillip June 23, 2004
 
3.
CTW
An acronym for a trick performed by magicians known as the card through window. The illusion that a card has penetrated through a glass window.
Holy shit, did you just see his CTW!
by Mchip May 10, 2007