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
A northerners term for “floor it”. It literally means pinning the throttle wide open on any motorized vehicle.
*whilst out for a rip*
Passenger: pin her, bud!
Driver: oh fuck ya bud, I’m about to pin her and rip some Donnie’s!
by ZubieDoobie January 15, 2018
To part a womens legs to gain access to her sweet vagina
Melissa is so hot, i can't wait to split her pins and taste that sweetness!
by JMoregon March 27, 2008
To part a womens legs to gain access to her sweet vagina
Melissa is so hot, i can't wait to split her pins and taste that sweetness!
by JMoregon March 27, 2008
On april 14 you grab your gf against the wall and make out.
i grabbed my gf and made out with her against a wall. Grab your gf day and pin her against the wall and start making out with her.
by coolie180 April 13, 2019