Question 1

What does "gunk up" mean?

Accepted Answer

To make a machine, pipe, or mechanism dirty and clogged with a sticky or greasy substance so it no longer functions well.

Question 2

How do you use "gunk up" in a sentence?

Accepted Answer

Years of cooking grease have really gunked up the kitchen exhaust fan.

Question 3

Is "gunk up" formal or informal?

Accepted Answer

"gunk up" is informal — used mainly in casual conversation. Primarily North American informal usage. 'Gunk' as a noun refers to any unpleasant sticky or greasy substance. Often used for mechanical parts, drains, or filters.

gunk up

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