JFK'ing

When you are so tired your head falls violently rearward, as if you were just shot in the head.

"Damn Jeff, are you allright?"
"Yeah man, I'm so tired, just keep JFK'ing"

by KGriz November 21, 2016

JFK'ing it

When you duct tape a 12X scope onto your member, then proceed to ejaculate onto a cardboard cutout of JFK and his wife across the room.

JFK'ing it; Example- me and my friend were messing around and I accidentally JFK'd it on John face.

by Pornhub.com/xX360NoSc0p3Xx November 20, 2015