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Fat Man

American  

noun

  1. the code name for the plutonium-core, implosion-type atom bomb the U.S. first tested and then dropped on Nagasaki in 1945.


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Example Sentences

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After this successful test, the Gadget was succeeded by Fat Man and Little Boy, the two bombs dropped over Japan.

From The Wall Street Journal Aug. 7, 2026

Fat Man and Little Boy are holding steady. apnews.com/article/dei-...

From Salon Mar. 10, 2025

Elsewhere is a display meant to honor the Japanese people killed and injured by Fat Man and Little Boy, a smaller bomb dropped on Hiroshima three days earlier.

From New York Times Apr. 26, 2024

The Fat Man bomb was dropped on Nagasaki on Aug. 9, 1945, three days after Hiroshima was devastated by Little Boy.

From Seattle Times Sep. 22, 2023

Fat Man was loaded into a B-29, and Sweeney and his crew took off and flew toward Japan early on the morning of August 9.

From "Bomb" by Steve Sheinkin

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