Definition of gum up (something)
informal
: to prevent (something) from working or flowing properly
Don't use that paper with the copier; you'll gum it up. The highway construction has really gummed up traffic. The bearings are all gummed up with mud.
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“Gum up (something).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gum%20up%20%28something%29. Accessed 11 Aug. 2022.
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