A sweaty smelly vagina after a good night of partying.
"I can smell your party flange from over here!"
Slang term referring to the desire to have sex with a woman.
"Yeah I'd well smash her flaps in!"
"Her flaps need a good smashing!"
"I'm guna take you home and smash your flaps in till they fall off!"
"I'd love to smash your flaps in!"