fine as frog hair
In real, traceable use. Part of the curated seed collection; community review is coming.
Also seen as: fine as frog's hair
Register: colloquial
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 “fine as frog hair” mean?
Extremely fine.
Is “fine as frog hair” formal or informal?
fine as frog hair is generally colloquial.