1) A ratio that involves how many pubes there are on one's muff, aka: Vagina.
2) How hairy someone's muff is.
NOTE: Long form is Pubes Per Muff
"Dude! She must've had a PPM of like 1 billion! It was just everywhere!"
"That's kind of hot actually."
"Piss off Stan..."
10👍 15👎