Jewish jack-knife

1. In a highway with three or more lanes, driving from the left-most lane to the right-most lane and back again (or vice versa); more impressive with one or more cars in the middle; no turn signal should be used.

2. The act of performing a back-to-back Puerto Rican sweep.

1. "Man, I'm going to need to Jewish jack-knife around these bitches."

2. "Dude, watch this."

by Stinky Finger McGee November 5, 2004

Jewish jack-knife

nothing jewish bout that, you just described driving in jersey

"wtf, did you see that mofo in the red pontiac go thru 4 lanes without signaling?"
"yeah, you in piscataway now dude"

by a triple h December 6, 2004

Rusty Jack Knife

A Rusty Jack Knife is a slang term for a geriatric man who porks women much younger than him. The "Rusty Jack Knife" comes in to play as a reference to his penis, which, aged, is rusty (hard to get erect), jacked (may have liver spots or warts), and knifed (smaller than the original youth size.)

"God damn! That old guy is a Rusty Jack Knife!"

by The Masticator May 2, 2005

Jack knife

farting while holding ones leg creating a very loud fart.

Wow that jack knife was sOoOoOo loud!!1

by Adam D. April 24, 2006

jack-knife

Having deposited your turd in the toilet, you look back to discover that its poking out of the water, too long and solid to go round the u-bend.

I had to go and fetch a stick so I could break up the jack-knife and flush the little devil.

by n_m April 1, 2004

jack-knife

another term for a rude person, synonymous with asshole, jerk, dick, bastard

a way to curse without offending your grandparents

1) Dude, look at that jack-knife over there, what a douche!!
2) Quit being a jack-knife!!

by Jigga JMO September 16, 2008

Jack Knife

A dive in which you jump into a pool , fold in your body with your hands & feet close to each other with the finger tips and toes pointing down, then unfolding bringing your feet to the air and keeping your hands where they are.

person 1 on diving board "HEY GUYS! CHECK OUT THIS JACK KNIFE IM GONNA DO IN THIS POOL!!"
person 2 from a far "YEAH DO IT!"

by Banzai Boy November 23, 2018