130+ Most Useful and Common Idioms Starting with J

Idioms Starting with J | An idiom is a phrase or expression that typically presents a figurative, non-literal meaning attached to the phrase. Some phrases which become figurative idioms, however, do retain the phrase’s literal meaning. Categorized as formulaic language, an idiom’s figurative meaning is different from the literal meaning.

Here are the list some of the Idioms starting with J:

idioms starting with j
idioms starting with j

Idioms Starting with J

Sr. No.IdiomMeaning
1Jack FrostIf everything has frozen in winter, then Jack Frost has visited.
2Jack the LadA confident and not very serious young man who behaves as he wants to without thinking about other people is a Jack the Lad.
3Jack-of-all-tradesA jack-of-all-trades is someone that can do many different jobs.
4Jam on your faceIf you say that someone has jam on their face, they appear to be caught, embarrassed or found guilty.
5Jam tomorrowThis idiom is used when people promise good things for the future that will never come.
6Jane DoeJane Doe is a name given to an unidentified female who may be party to legal proceedings, or to an unidentified person in hospital, or dead. John Doe is the male equivalent.
7Jekyll and HydeSomeone who has a Jekyll and Hyde personality has a pleasant and a very unpleasant side to the character.
8Jersey justiceJersey justice is very severe justice.
9Jet setVery wealthy people who travel around the world to attend parties or functions are the jet set.
10Jet-blackTo emphasize just how black something is, such as someone’s hair, we can call it jet-black.
11Job’s comforterSomeone who says they want to comfort, but actually discomforts people is a Job’s comforter. (Job’s is pronounced ‘jobes’, not ‘jobs’)
12Jobs for the boysWhere people give jobs, contracts, etc, to their friends and associates, these are jobs for the boys.
13Jockey for positionIf a number of people want the same opportunity and are struggling to emerge as the most likely candidate, they are jockeying for position.
14Jog my memoryIf you jog someone’s memory, you say words that will help someone trying to remember a thought, event, word, phrase, experience, etc.
15John DoeJohn Doe is a name given to an unidentified male who may be party to legal proceedings, or to an unidentified person in hospital, or dead. Jane Doe is the female equivalent.
16John Q PublicJohn Q Public is the typical, average person.
17Johnny on the spotA person who is always available; ready, willing, and able to do what needs to be done.(‘Johnny-on-the-spot’ is also used.)
18Johnny-come-latelyA Johnny-come-lately is someone who has recently joined something or arrived somewhere, especially when they want to make changes that are not welcome.
19Joined at the hipIf people are joined at the hip, they are very closely connected and think the same way.
20Judge, jury and executionerIf someone is said to be the judge, jury, and executioner, it means they are in charge of every decision made, and they have the power to be rid of whomever they choose.

21Juggle frogsIf you are juggling frogs, you are trying to do something very difficult.
22Jump down someone’s throatIf you jump down someone’s throat, you criticise or chastise them severely.
23Jump on the bandwagonIf people jump on the bandwagon, they get involved in something that has recently become very popular.
24Jump the gunIf you jump the gun, you start doing something before the appropriate time.
25Jump the sharkSaid of a salient point in a television show or other activity at which the popularity thereof begins to wane: The Flintstones jumped the shark when a man from outer space came to visit them. The expression derives from an episode of the television sitcom ‘Happy Days’ in which Fonzie, clad in leather jacket and on water skis, jumps over a shark. That episode was widely seen as the beginning of the end for the formerly popular series.
26Jump through hoopsIf you are prepared to jump through hoops for someone, you are prepared to make great efforts and sacrifices for them.
27Jump to a conclusionIf someone jumps to a conclusion, they evaluate or judge something without a sufficient examination of the facts.
Jumping Judas! – An expression of surprise or shock.
28Jungle out thereIf someone says that it is a jungle out there, they mean that the situation is dangerous and there are no rules.
29Jury’s outIf the jury’s out on an issue, then there is no general agreement or consensus on it.
30Just around the cornerIf something is just around the corner, then it is expected to happen very soon.
31Just as the twig is bent, the tree’s inclinedThings, especially education, that affect and influence us in our childhood shape the kind of adult we turn out to be. (There are various versions of this, like ‘As the twig is bent, the tree’s inclined’ and ‘As the twig is bent, so the tree inclines’, ‘As the twig is bent so is the tree inclined’)
32Just coming up toIf the time is just coming up to nine o’clock, it means that it will be nine o’clock in a very few seconds. You’ll hear them say it on the radio in the morning.
33Just desertsIf a bad or evil person gets their just deserts, they get the punishment or suffer the misfortune that it is felt they deserve.
34Just for the heck of itWhen someone does something just for the heck of it, they do it without a good reason.
35Just for the recordIf something is said to be just for the record, the person is saying it so that people know but does not necessarily agree with or support it.
36Just in the nick of timeIf you do something in the nick of time, you just manage to do it just in time, with seconds to spare.
37Just off the boatIf someone is just off the boat, they are naive and inexperienced.
38Just what the doctor orderedIf something’s just what the doctor ordered, it is precisely what is needed.

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