Top Definition
a phrase used to introduce a concept, idea, or thing to someone, so that they may recognize and be aware that it exists
Guy: Do ants breathe?
Girl: Their exoskeletons absorb oxygen, but they don't have lungs.
Guy: No way, that's not true!
Girl: No dude, that's a thing!
#thats a thing #thatsathing #for reals #no way #nuh uh #thats not a thing #thats not even a thing #that's not a thing #that's not even a thing
by smallypants March 30, 2010
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