Idioms and Phrases starting with “J”

By Naveen Singh|Updated : January 31st, 2019

Dear gradians,

Today we are posting Idioms & Phrases beginning with “J”. we hope you liked the previous articles. Here’s a small task for you guys post idioms and phrases which you come across that has not been covered here and ask for sentences from others. This would boost your prep and make this more interesting and interactive. So here is a list of Idioms and Phrases with J:

Important Idioms and Phrases starting with “J”

Idioms and Phrases



Jump the gun

Do something too early, especially without thinking

The media jumped the gun and gave out their verdict of the scandal even before the investigation was complete

Jack of all trades

somebody who has many skills or who is versatile in every field.

Sandeep is the jack of all trades as he can teach, sung and do many different jobs at a time.

Jump to conclusion

form an opinion or judgement hastily.

Wait till we get the report; don’t jump to a conclusion.

Jam on the brakes


to press the brakes suddenly and in a hard way.

I had to jam on the brakes because a kid suddenly appeared from nowhere and crossed the road.

John Hancock

A person's signature.

Put your John Hancock at the bottom of the will.

Jump on the bandwagon

To profit from a craze; to join a trend.

After the incredible success of the new product, the company has jumped on the bandwagon and released a new version of it.

Jump the lights

Pass traffic lights, when they are red.

Don’t jump the lights as it may be fatal for you.

Justice is blind

This expression means that justice is impartial and objective.

No matter who you are, you must respect the law. Justice is blind!

Jangle someone’s nerves

Annoy someone or make them nervous.

The noise of the dog jangled my nerves.

Jump for joy

To be extremely happy:

The blood tests so far show my mother doesn't have cancer, but it's still too early to jump for joy because she has to have more tests

Just deserts

Get what one deserves.

After a lot of hard work, he got his just deserts

Also check:

Important Idioms and Phrases for CDS Exam


All the best

Team BYJU'S Exam Prep


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