When you viciously beat someone to death with a rolling pin in Texas.

Another way of saying kingpin.

The Portuguese pin bill is a very complex form of sex that involves taking a golf ball and hitting it up the anus and play pinball with the woman's organs.

Two fingers and a penis

When you play tic tac toe, but instead of using o’s and x’s you stick a pin of your respectable colour into your own hand. Your opponent sticks a pin of his corresponding colour in your hand too.

In bowling, when you knock down 9 pins on your first throw and there is only one pin left, that is the "spare pin"

When someone is hair pinned and has it as verticle as possible to represent they have weed and willing to be a vender to sell some for the right price. May or may not be a dealer, but usually knows other hook ups. Generally down to smoke you out as well.