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2. 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!!
1. jack-knife
a semitrailer truck accident where the truck portion folds backwards so that it resembles a jack-knife
I realized I had to take a detour when I heard about the delay caused to a jack-knife on the freeway.
3. 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 Apr 1, 2004 add a video
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