Top Definition
Someone who won't shut up.
Hey Chatty Cathy, shut the fuck up we're trying to watch the game.
by examsesh April 22, 2006
2 more definitions
A bitch who not only will not shut up, but who has no idea what the hell she's talking about, or says hypocritical things.
Smart Woman: You said at the committee meeting that kids should not fill up on sweets, yet you're feeding them all kinds of candy for being good little boys and girls.

Chatty Cathy: Oh...well, I guess I just don't think about it that much...
by bojzzle December 28, 2006
Used as a Utah slang word for the typical LDS group daters that ruin where ever they go by bringing a horde of "Chatty Cathy's" along. Hence, Girls that can't seem to shut the F*** up and talk over meaningless shit non-stop.

Also being transposed into the gay scene of Utah as drama queen gays who can not help but not create rumors, embellish, or reveal any personable items with no remorse.
Damn, can you hear all those chatty cathy 's that just walked into the movie theater? I better get my stun gun to shut those bitches up.
by Amos Vanburren November 03, 2007

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