In dribs and drabs– in small amounts at a time
In black and white– to give in writing
In the blues– low spirited
In cahoots with– in a partnership usually for a dishonest reason
If the shoe fits, wear it- This is used to suggest that something that has been said might apply to a person
In droves- When things happen in droves, a lot happen at the same time or very quickly
In the doghouse- If someone is in the doghouse, they are in disgrace and very
Unpopular at the moment.
Jack Frost – If everything has frozen in winter, then Jack Frost has visited.
Jack the Lad – A confident and not very serious young man who behaves as he wants to without
thinking about other people is a Jack the Lad.
Jack-of-all-trades– A jack-of-all-trades is someone that can do many different jobs.
Jam on your face – If you say that someone has jam on their face, they appear to be caught,
embarrassed or found guilty.
Jam tomorrow – This idiom is used when people promise good things for the future that will never come.
Jane Doe – Jane 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.
Jekyll and Hyde – Someone who has a Jekyll and Hyde personality has a pleasant and a very
unpleasant side to the character.
Jersey justice – Jersey justice is very severe justice.
Jet set – Very wealthy people who travel around the world to attend parties or functions are the jet set.
Jet-black – To emphasise just how black something is, such as someone's hair, we can call it jetblack.
Job's comforter – Someone who says they want to comfort, but actually discomforts people is a Job's comforter.
Jobs for the boys – Where people give jobs, contracts, etc, to their friends and associates, these are jobs for the boys.
Jockey for position – If a number of people want the same opportunity and are struggling to emerge as the most likely candidate, they are jockeying for position.
Jog my memory- If you jog someone's memory, you say words that will help someone trying to
remember a thought, event, word, phrase, experience, etc.
John Doe- John 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.
Joe Public – Joe Public is the typical, average person.
Johnny on the spot – A person who is always available; ready, willing, and able to do what needs to be done.('Johnny-on-the-spot' is also used.)
Johnny-come-lately – A Johnny-come-lately is someone who has recently joined something or
arrived somewhere, especially when they want to make changes that are not welcome.
Join the club – Said when someone has expressed a desire or opinion, meaning "That viewpoint is not unique to you". It can suggest that the speaker should stop complaining since many others are in the same position. Example: "If this train doesn't come, I'll be late for work!" "Join the club!"
Joined at the hip – If people are joined at the hip, they are very closely connected and think the same way.
Judge, jury and executioner – If 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.
Juggle frogs – If you are juggling frogs, you are trying to do something very difficult.
Jump down someone's throat – If you jump down someone's throat, you criticise or chastise them severely.
Jump on the bandwagon – If people jump on the bandwagon, they get involved in something that has recently become very popular.