jam-up

[jam-uhp] /ˈdʒæmˌʌp/
noun
1.
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.
Origin
1940-45; noun use of verb phrase jam up
Examples from the web for jam-up
  • The moving parts of the machine either continued to coast, or the parts moved when the jam-up was cleared.
Slang definitions & phrases for jam-up

jam-up

noun

A tight crush of people, cars, etc, preventing normal movement; jam: to forestall the possibility of another jam-up (1940s+)