Definitions by DontWorryAboutIt!..

That's line 

Used in texts instead of "That's not cool" Or "that's bad" Developed on the greatest thread ever made when "My" was left out of "That's my line"

"God's pretty much the bomb diggity" -Lauren

"Hey! That's line!.. You can't use my phrase!" -Andrew

That's line by DontWorryAboutIt!.. March 31, 2010