A woman with excessively long labia. Like Camel toe that has gotten really flabby.
She should NOT be wearing that spandex, you can see her waddle twat.
a dirty girl's long and stretched out cunt curtains
I got my man meat all tangled up in that filthy bitch's twat waddle. Courtney Love must have an enormous twat waddle.
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An Anal Twat Waddle is how a female walks right after getting double penetration.
Person 1 - Dam, she is hot! I am going to ask that bitch out!
Person 2 - No, man, don't do it; she gots that Anal Twat Waddle going on.