like crazy
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To a great or excessive degree; with great speed, output, enthusiasm, etc.
Register: colloquial
Where it’s used:
Used
American English
Examples
She stayed late, working like crazy to get the project done before the deadline.
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).
Common questions
What does “like crazy” mean?
To a great or excessive degree; with great speed, output, enthusiasm, etc.
Is “like crazy” formal or informal?
like crazy is generally colloquial.