Fluff on the Muff 

Pubic Hair on a Female's Vaginal Area

If she got fluff on the muff, shes old enough.

Fluff on the Muff by Slim August 14, 2004

fluff on the muff 

To put it quite simply: vagina pubes
Fluff being the pubes, and muff being a slang term for vagina

"If there's fluff on the muff, she's old enough."
-Ali G.

fluff on the muff by Johnjacobjingleheimerschimdt April 6, 2010

Fluff on the Muff 

When you go to your local super market and buy that delicious stuff they cal Fluff that you mix with Peanut Butter. You than go home find your girlfriend and say "Hey Babe, Let me put some Fluff on Your Muff." Than you kick it wit her and watch her legs spread as she begs you to spread the Fluff.

Yo Man I hate whipped cream, so im gonna put some fluff on the muff instead.

Fluff on the Muff by RobbieNJ November 16, 2006