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2.
International Table Tennis Federation. It is the highest governing body of the sport of Table Tennis. It is led by representatives from England, Germany, and Hungary.
In 2000, the ITTF instituted several rules changes aimed at making table tennis more viable as a televised spectator sport.
by Amaranthian August 13, 2008
 
1.
I think that's funny.

A response to something very funny, worth laughing at, but not quite rolling on the floor laughing ROTFL or laughing one's ass off LMAO

Can be used both online and in general conversation.
Brandon says: Why did the fish get kicked out of school?
Tara says: I don't know why?
Brandon says: Because he was caught with seaweed.

Tara says: Oh man hhahah ITTF!!
by Bailes Braun August 06, 2009
 
3.
I Think That's Funny.

Used instead of 'lol'.
person one: Damn! I just lost the game.
person two: haha ittf!
by magic055 December 05, 2009