heater
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
A handgun.
Register: dated, slang
Where it’s used:
Used
American English
Examples
The thug pumped two rounds from his heater into her.
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).
Sense 2
Meaning · English
A fastball, especially one thrown at high velocity.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “heater” mean?
A handgun.
Is “heater” formal or informal?
heater is generally dated, slang.