Top Definition
Interesting, thought provoking.
The universe's size make astrological science extremely tifty.
by Smarthalf July 01, 2014
The way socially inept people spell tfti.
Zack: That party was great!
KnapDawg: Tifty!
Everyone: What the hell-?
by notsocharmedcinderella April 12, 2011
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