spacer

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

A forgetful person; one who spaces out.

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 “spacer” mean?

A forgetful person; one who spaces out.

Is “spacer” formal or informal?

spacer is generally slang.