smell up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To fill up with an unpleasant odour.
Register: informal
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To have an unpleasant odour.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “smell up” mean?
To fill up with an unpleasant odour.
Is “smell up” formal or informal?
smell up is generally informal.