Definitions from Wiktionary (gum up)

▸ verb:  (intransitive) To become gooey or gummy.
▸ verb:  (transitive) To cause to be gooey or gummy, especially with the effect of obstructing the operation of some mechanism or process.
▸ verb:  (transitive, idiomatic, by extension) To make non-functional; to interfere with or put into a state of disorder; to ruin.






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