space case
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
An insane or eccentric person who has little grip on reality.
Register: slang
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 “space case” mean?
An insane or eccentric person who has little grip on reality.
Is “space case” formal or informal?
space case is generally slang.