fog up
The phrase "fog up" is often used to describe the process of condensation forming on surfaces, as well as in some informal contexts.
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Definition
B1Everyday
(common)To become covered with condensation, making visibility difficult.
Example
- My glasses fogged up when I stepped out of the air-conditioned car.
B1Everyday
(common)To cause a surface, like glass or a mirror, to become obscured by condensation.
Example
- The bathroom mirror fogged up after the hot shower.
B2Colloquial
(slang)To confuse or perplex someone.
Example
- The complex instructions fogged me up.
Similar
Terms that have similar or relatively close meanings to "fog up":
fog outfog a mirrorsteam upmist upsteaming upsteamed upfoam upfog linemuddy upcloud upmist overgum upsmell uphot upsnot upstink upbug uppuddle upglaze upsmoke upfoul upscuzz upflame upmuddle uppuff upfluff upbubble upfall upfog of warplait foggas upwindow upgoose upmuss upheat upkick up dustmuck up