a stoppage or slowing of motion, work, or the like, due to obstruction, overloading, malfunction, or inefficiency; jam: Your letters didn't go out yesterday because there was a jam-up in the mail room.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use jam-up in a sentence
Nowadays, the crooks jam up the MetroCard dispensers so people are unable to purchase or replenish one.
I have seen a child rubbing a bit of bread-and-jam up and down on the dirty stone before it eats it.The Children's Book of London | Geraldine Edith Mitton
But here was a taxi, jam up against the curb not a dozen feet62 off, with the chauffeur swingin' his cap enthusiastic.Shorty McCabe on the Job | Sewell Ford
"When the jam up broke we'd have the water and the wreckage down on the mine," he said.A Damaged Reputation | Harold Bindloss
The temperature must have been perfect, and connubial bliss I allot was rael jam up.The American Joe Miller | Various
Put it jam up agin Plunkett's head un tell him to hole still ur die.The Graysons | Edward Eggleston