When you or someone else cannot speak verbally. Usually when a secret got told, or something surprising happened.
Example -

Person 1 - So, how was the show?
Person 2 - Um.. I-.. Ugh..
Person 1 - What? Cat got your tongue again?

Person 2 - Ugh... um.. no.. I mean.. uhh..
by __Gabberss__ March 16, 2017
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An idiom meaning you’re being unusually quiet or aren’t saying much.

Also a euphemism for performing oral sex on a female.
“You haven’t said anything all morning. What’s wrong? Cat got your tongue?”

“I couldn’t say anything when I was eating that pussy! Her cat had my tongue!”
by Sukon Mabalsak January 25, 2022
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When you’re letting him eat you out, and while his tongue is inside you, you do a kegel, and yell, “cat got your tongue!”
Oh, Oh, yes! Woop! Cat got your tongue!
by RandomTurtle321 May 21, 2022
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