gum up
verb
Middle School
1
To become gooey or gummy.
2
To cause to be gooey or gummy, especially with the effect of obstructing the operation of some mechanism or process.
3
To make non-functional; to interfere with or put into a state of disorder; to ruin.
Explore More
More Middle School words starting with “G”
Browse other words in the same learning bracket as gum up.