Define J.f.k Meaning

J.F.K

"Hey ever wondered why J.F.K is on the half dollar coin?"
"Why is that?"
"He's missin half his fuckin head!"
By Avis
J.F.K.
The act of ejaculating so hard in one's face that the sheer recoil of the busted load makes the receiver's head jerk back then to the side (either side will do) much like the unfortunate assassinated U.S. President of the 60's.

Man: You ready for it baby?

Woman: Yea gimme your man-chowder

Man: UGGHHHH! *shoots his load and does the J.F.K.*

Woman: WTF was that?

Man: That...*tiredly* was your first J.F.K.
By Malinda
Shake Hands With J.F.K.

Brb, ima go shake hands with J.F.K.!
By Cherida
J.F.K.
When you are having sex doggy style, and you nut at such an excruciating force, that you hit her in the back of her head with your cumshot.

Jimmy: Hey how did it go with Jenna last night?
Derek: Dude when I was hitting it from the back I accidentally pulled a J.F.K.

Jimmy: damn dude you're a cum sniper!
By Bernice