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1.
When someone is able to carry on a good conversation through text messaging.
We were having a great conversation texting. She's got real text appeal.

She texts too slow and has nothing to say. I'm talking zero text appeal.
by samstricklin January 08, 2009
 
2.
When someone is a very good texter, so good in fact that it convinces you that you like them.
Damn, I can't wait to hang out with this guy. He has some serious text appeal
by kcott December 01, 2010