fog up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To coat, or become coated, with condensation. To steam up.
Where it’s used:
Used
American English
Examples
My glasses fogged up when he opened the shower door.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To get (someone) drunk.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To confuse (somebody).
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “fog up” mean?
To coat, or become coated, with condensation. To steam up.
Is “fog up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.