Poon is a woman's vagina. There is also poon royalty as in the Poon King, the Prince of Poon and the Poon apprentice. These are the un-official masters of poon.
1. Lets go out tonight and get some poon.
2. I was with the the Poon King last night and he hooked me up with some sweet poon.
3. Hey look at the size of that poon!