On the fire
adjective phrase
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- On the front burner
adjective phrase Getting immediate attention (1970+)
- On the gravy train
adverb phrase Enjoying an effortless and prosperous life; flush: After a couple of years on the gravy train the bottom fell out of things (1927+)
- On the ground floor
Related Terms in on the ground floor
- On the half shell
adjective of raw shellfish, served in the bottom shell, chilled and with condiments Usage Note cooking
- On the head
Related Terms hit the nail on the head