thor's hammer

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Meaning · English

An orbital drop hypervelocity kinetic energy weapon (KEW). A theoretical weapon, originating from a U.S. government study, Project Thor, from the 1950s.

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 “thor's hammer” mean?

An orbital drop hypervelocity kinetic energy weapon (KEW). A theoretical weapon, originating from a U.S. government study, Project Thor, from the 1950s.

Is “thor's hammer” formal or informal?

thor's hammer is generally slang.