jack in - meaning and definition. What is jack in
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What (who) is jack in - definition

Jack In Irons; Jack-In-Irons

jack in      
To log on to a machine or connect to a network or BBS, especially for purposes of entering a virtual reality simulation such as a MUD or IRC (leaving is "jacking out"). This term derives from cyberpunk SF, in which it was used for the act of plugging an electrode set into neural sockets in order to interface the brain directly to a virtual reality. It is primarily used by MUD and IRC fans and younger hackers on BBS systems. [Jargon File]
Jack-in-the-pulpit         
WIKIMEDIA DISAMBIGUATION PAGE
Jack-In-The-Pulpit; Jack in the Pulpit; Jack-in-the-pulpit; Jack-in-the-Pulpit; Jack in the pulpit (disambiguation); Jack-in-the-pulpit (disambiguation)
¦ noun
1. another term for cuckoo pint.
2. a North American arum with a green or purple-brown spathe. [Arisaema triphyllum.]
Origin
C19: so named because the erect spadix overarched by the spathe resembles a person in a pulpit.
jack-in-the-box         
  • Jack-in-the-box after  [[Paul Gavarni]]
WIKIMEDIA DISAMBIGUATION PAGE
Jack in the box; Jack In The Box; Jack-in-a-Box; Jack in a Box; Jack-in-the-Box (disambiguation); Jack-in-a-box; Jack-in-a-boxes; Jack-in-the-Box (comics); Jack-in-the-Box comics; Jack-in-the-Box; Jack-in-the-boxes; Jack-in-the-box (disambiguation)
(jack-in-the-boxes)
A jack-in-the-box is a child's toy that consists of a box with a doll inside it that jumps out when the lid is opened.
N-COUNT

Wikipedia

Jack-in-Irons

Jack-In-Irons is a mythical giant of Yorkshire lore who haunts lonely roads. He is covered with chains and wears the heads of his victims. He wields a large, spiked club. His name may not be Jack as other Yorkshire folklore refers to "Jack-of-Green" and more so the name Jack may just be a term for calling the person an unknown male, like John Doe today.

Jack-in-Irons is portrayed in the Merry Gentry series by Laurell K. Hamilton. He is described as follows: "Uther was thirteen feet tall, with a head that was more pig than human, and two curling tusks on either side of his snout. He was a jack-in-irons, but he was named Uther Squarefoot."

Pronunciation examples for jack in
1. you jack in the day job.
The 10% Entrepreneur _ Patrick McGinnis _ Talks at Google
2. The Jack in the Box one started because in Sacramento,
George Lopez _ My Life and Career as a Comedian _ Talks at Google
3. Arby's, Burger King, Dairy Queen, Jack in the Box.
Chris Gethard Presents _ Chris Gethard & Friends _ Talks at Google
4. I said, is this Jack in the Box?
George Lopez _ My Life and Career as a Comedian _ Talks at Google
5. Where'd you get 'em? McDonald's, Wendy's, Jack-in-the-Box?
Pulp Fiction
Examples of use of jack in
1. Posing for photographers with Jack in his arms, he looked almost content.
2. Even the enthusiastic girl waving the solitary Union Jack in evidence quietly put it down.
3. Reporting by Andrew Jack in London, Hugh Williamson in Berlin and Neil Buckley in Moscow
4. At the moment, nine, 10 and jack in the England side are very similar.
5. There‘s Meghan‘s brother, Jack, in the Naval Academy, and her other brother, Jimmy, a Marine who has served in Iraq.