What is Thumbtack?
1.
Sexual Position. The man sits in a chair and the girl sits on his erect penis. Kind of like how you would put a thumbtack on your teachers chair so that they would sit on it.
"Dude did you bang that chick last night?"
"Yea, I thumbtacked her."
See
2.
to shoot someone running or shoot without notice
"Ya hear Jon Jon got thumbtacked by Lil Beaver"
Random Words:
1.
another word for a man's penis
go on, whip out the spermshooter
See sperm, shooter, gun, poo, dick..