# gum up

idiom

Source: https://englishreference.com/idiom/gum-up
Updated: 2026-08-10

## Meaning

To make non-functional; to interfere with or put into a state of disorder; to ruin.

## Examples

- Sticky syrup will gum up the lock.
- If you do not clean the machine regularly, dust and oil will gum up the gears.
- Bureaucratic delays often gum up the process, preventing the team from completing their work on schedule.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.