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1.
the superlative form of "tool". used to describe an immensely stupid, self-absorbed, or awkward individual. actual t00ls often misuse the word to humorous effect.

examples of t00ldom include: commenting on others' facebook wall posts, injecting oneself into conversations, being recklessly self-important, operating under the delusion of having many friends, and shamelessly imitating superiors
K: Wow, Rob just commented on the wall post you left me!
O: How awkward... he's such a t00l
by p00kster September 13, 2009
 
2.
(Verb)
Internet slang for the word tool similar in definition but does not relate to male body parts.

1. Being a complete Moron/Asshat

2. Doing something stupid at anothers transgression withut realising it

3. losing in a game due to your own fault, loser.
Man, your such a t00l

You t00l got 0wn3d
by Kal March 22, 2004
 
3.
Zachary Merrick from All Time Low.
An ugly guy who never wears shirts on stage.
The t00l doesn't know where the beach is.
by Borat, no? January 02, 2008