look up any word, like fellated:
 
1.
said as a joke/insult about a friend having a pin dick when he starts talking about sex.
Guy 1:"That chick over there looks horny!"
Guy 2:"Yeah, she want's you to pin her!
hahahahaha!"

or

"Dude i saw you leave the party with Jane. did you pin her? hahahahaha!"
by jack'o September 15, 2008