Top Definition
Words that when typed in T9 may be written as a word not intended.

Also pronounced "T9onym"

A Tennonym for "Jordan" is "Korean"
A Tennonym for "Caleb" is "Baked"

"Dude, my girlfriend is so bad at texting. Her text's are so full of tennonyms."
by Caleb McIntosh November 09, 2008
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