mad as a mongoose
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Demented or crazy.
Register: humorous
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).
Common questions
What does “mad as a mongoose” mean?
Demented or crazy.
Is “mad as a mongoose” formal or informal?
mad as a mongoose is generally humorous.