Pee Flaps 

The iner or outer female genitalia, "Labia"

Dude, check out them Pretty Pink Pee Flaps on that chick!

Pee Flaps by Dr.Deezul September 3, 2006

pee-pee flap 

A humorous or sexy way for an intact male to refer to his foreskin. Helps women learn to appreciate its beauty instead of thinking it should just be cut off.

Angela: What's that wrinkly thing?
Will: That's my pee-pee flap. It keeps my pee-pee warm and sensitive.
Angela: Hey, it's kind of cute...

pee-pee flap by I Love Ellie Elephant June 24, 2016

pee flap

labia, see: cunt lip

I pulled apart her pee flaps and drove my tongue into her pussy.

pee flap by Accident June 13, 2004