Pussy that is so tight and fabulous, it's beyond lined with gold. It is short for "platinum lined" pussy. It is known to keep the man coming back for more, like a pussy hex.
"Oooh that pussy was plat-plat, I just couldn't keep myself from comin back fo mo."

"Stomach on flat-flat, and yo, pussy on plat-plat"
by Loyo23 August 12, 2017
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