730
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Crazy, insane.
Register: slang
Where it’s used:
Used
American English
Examples
He's going to go completely 730 when he finds out what we did.
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 “730” mean?
Crazy, insane.
Is “730” formal or informal?
730 is generally slang.