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Simply put it is the action of waking someone who is asleep in a moving vehicle. It could be a car, a train or even an aeroplane - it doesn’t matter! The deeper the sleep, the more effective the 'Jenksing'! See below for a more detailed dictionary definition.

jenks ( jënks)
v. jenks'd, jenks·ing, jenks'
v.tr.
To strike with sudden fear whilst asleep in a moving vehicle; alarm: to jenks someone.
v.intr.
To become frightened: a deep sleeping person normally jenks' easily.
n.
1. A condition or sensation of sudden fear on waking.
2. A general and instant state of alarm; a panic: that left him well and truly jenks'd!
adj.
Intention to frighten people: lets jenks him!
v. jenks·ing
The practice of waking someone in a moving vehicle.
v. jenks'd
The past form of jenks: you've been jenks'd!
A passenger in a car quietly asleep on the back seat is woken abruptly by the other passengers by screaming and slamming on the brakes to induce an abrupt wake up call to the unsuspecting victim. Hopefully the victim will give a hilarious reaction to this apparent impending crash which should be filmed and distributed to the world. This is the art of Jenksing somebody.
Jenksing by Garymugg September 9, 2012
Words you can keep

Jenking Off 

Jenking off is the act of taking a big whiff of jenkum before jacking off, using the left over sewage from the jenkum bottle as lubricant.
I heard Steve jenking off in the bathroom at school.
Jenking Off by School Wizard February 27, 2011
Related Words

Jenksin' 

v. The act of quiting

Its origin comes from the "butt-fucking quitter" Jenks.
"Man, why you jenksin' all the time?"
"Did you hear Jonny is jenksin' life."
"That butt-fucking quitter, he jenksin'."
Jenksin' by Jaharphan January 1, 2006
A sport often enjoyed in Australia and now, worldwide, whereby the perpetrator knocks on the front door of a random house after having turned off the main power switch in the fusebox or switchboard. The perpetrator then runs and hides before the householder comes to the front door.

This sport is best enjoyed close to midnight on a cold night for obvious reasons:
-It is cold outside and no householder wants to go outside in the cold
-You have the cover of darkness to hide in and a safe place from which to watch the madness unfold
-In the dark with the power off, electric lighting is ineffective, ensuring much hilarity
-Many adults will have already gone to bed by this time, ensuring a livid mental state when they get to the front door only to find nobody there
The boys and I went Jenking last night; I scraped my shin on the brick fence, but it was worth it to see Mr Jones go off his tree yelling obscenities out into the night.
Jenking by Pseudonym#2 July 13, 2010
v. Act of becoming the center of all that is awsome; excelling is the art of being the dopest shit.

n. Nickname for leader of a group because that person is so fucking rad in every way. A person who is the illest of all.
"Damn homie, she is so jenking right now! SSSNAP!"

GIRL #1: "Oh man, look how hawt that guy is!"
GIRL #2: "He is such the jenking of the posse!"
GIRL #3: "We should totally have a fourgy with him!"
jenking by NickSS October 3, 2005

Jenking Off 

What Chicago White Sox fans do when Bobby Jenks comes into the game in the 9th Inning to close it out
"Dude we're up 6 to 5 going into the top of the ninth. I can't believe how hard I'm Jenking Off right now".
Jenking Off by hedup34 May 1, 2009
when a guy&girl have sex in one of their parents room. THIS IS A MORTAL SIN.
person 1: "Dude I have something to tell you..."
person 2: "What?"
person 1: "me&Lonnie were jenking last night I'm goin' to hell."
jenking by lonlover6point9 October 26, 2011
More from Urban Dictionary

just fokin missing her

native american reservation origin... to miss an ex so badly that everyone can see it.. can be used for either sex eg. just fokin missing her/him
friend : *noticably sad*
me : look at you all sad & shit
friend : shut up!
me : just fokin missing her huh?
Word of the Day on September 15, 2026

endwarfins

The rush of neurotransmitters and neuropeptides triggered specifically by watching the Seven Dwarfs march home singing "Heigh-Ho" — that particular high of pickaxes, whistling while you work, and communal domestic bliss in a cottage built for men half your height.
I only meant to watch the Heigh-Ho scene for the endwarfins, and then it was two hours later and I'd watched the whole movie.

Endwarfins aren't just a Snow White thing — I get the same hit off the Lollipop Guild in Oz.
endwarfins by Howard Ogden September 13, 2026
Word of the Day on September 14, 2026
A slang term used to describe a bald person, typically someone who is completely bald or has a closely shaved head. The term is derived from the infamous, hairless kids’ cartoon character of the same name.
Example 1:
“Did you see that caillou over there? His head is reflecting the sun like a disco ball.”
Example 2:
“I think Dave is finally accepting his hair loss. He just went full caillou and shaved the whole thing off.”
caillou by WMH01 September 12, 2026
Word of the Day on September 13, 2026

Brought-upsy 

scruples; to have manners;

May also be spelt Brought-upsie

WestIndian/Caribbean in orient - Barbados, WHUT.
Example 1: Child, you ain't got no brought-upsy?

Translation: My Child, have you not any manners?



Example 2: What, you ain't got no brought-upsy?

Translation: I can't believe you're doing that. Were you not taught any manners as a child?
Brought-upsy by B-Town Gilly April 20, 2005
Word of the Day on September 12, 2026
The practice of modifying a model (not limited to toy action figures) to achieve some result other than that intended by the manufacturer. ...
I had to kitbash my Luke Skywalker figure with my Darth Vader figure because Luke was missing a hand.
kitbash by geru January 15, 2006
Word of the Day on September 11, 2026

Satellite baddies

Attractive women who are far from your location.
There are no hot girls in the area, theres only satellite baddies.
Satellite baddies by Banksy123 September 5, 2026
Word of the Day on September 10, 2026
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