gum up

1. 1.

   stick together as if with gum

   “the inside of the pipe has gummed up”

   Broaderclog

Questions about gum up

What does gum up mean?

gum up means "stick together as if with gum".

Is gum up a common word?

gum up is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.