1 definition by Rami Blackhole Triangle
A sexual act in which while fisting a girl you open your hand while it is inside of her so that she is unable to escape. Based on the manner in which a barbed harpoon will not exit once it punctures its target.
Frank: "Yo I just harpooned my feeble asian girlfriend last night, it was ridiculous!"
Alex: "Once you launch the harpoon, you can't get that shit out!"
Alex: "Once you launch the harpoon, you can't get that shit out!"
by Rami Blackhole Triangle February 27, 2011