Jump off the shelves
To sell very well.The new children's toy is jumping off the shelves.
Jump off the deep end
To take immediate and drastic action.It is time for me to jump off the deep end and quit my job and go back to school.
Jump down (someone`s) throat
To criticize or become angry with someone.When I reached the office my boss jumped down my throat for being late.
Jam-packed
Crowded, full.The train this morning was jam-packed with people.
Jam on the brakes
To quickly put the brakes on to stop a car or truck etc..I jammed on the brakes to avoid hitting the child.
Jack up (something)
To raise prices, to raise something with a lifting device.The gas station jacked up their gas prices during the storm.
Jump the track
1. (lit.) To jump off the rails of the train. The train jumped the track near the edge of the town. 2. To change suddenly from one thing to... Read more →
Jack-of-all-trades
A person who can do many things. We gave Bob the job because we were in need of a jack-of-all-trades to look after the building repairs. A... Read more →
In the lap of luxury
In luxurious surroundings.I have been living in the lap of luxury since I got a big salary increase at work.
In the know
Knowledgeable.I do not think that our teacher is in the know about the problems in the other classes.