Poon poon is vagina.
In short, a poon poon hunter is one that hunts vagina.
A true poon poon hunter will do whatever it takes to get the poon poon.
Guy 2: Sounds good man. You are a true poon poon hunter. I am glad you are my friend.
Guy 1: Love them skeezers!
Guy 2: Poon poon hunting for life!