Jam-up

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The situation where material becomes jammed in a machine, or some process similarly grinds to a halt.

    "The rationale goes something like this: Increasing line speeds, complex packaging equipment, and ever-lighter-weight containers and packaging materials make jam-ups likely—usually many per day."

Adjective
  1. 1
    Splendid; wonderful; upstanding. US, dialectal, not-comparable

    "Pete's a real jam-up guy."

Example

More examples

"The rationale goes something like this: Increasing line speeds, complex packaging equipment, and ever-lighter-weight containers and packaging materials make jam-ups likely—usually many per day."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.