1 definition by Theamazinghellenkeller

Top Definition
A cellphone tool that is really useful if you know how to use it, but generally really annoying because you have to decipher people's texts. The general idea is that you only need one keystroke per letter per word (like the word "the" would be "843" However, some words share keystroke combos and it gets really annoying.
Dumbass: Of (me) and my mother are going to watcher mother (movies) Them (Then) we will have able (cake).
Me: Turn off T9 untill you learn how to use it.
by Theamazinghellenkeller July 26, 2005
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