Definition
A small latex or rubber balloon filled with water, used as a projectile in recreational water fights and games, popular during warm weather.
Example Usage
The water balloon burst against his shoulder, soaking him completely.
Origin
Simple compound of 'water' + 'balloon', becoming a staple of summer play in the mid-20th century as balloon manufacturing became affordable.
Fun Fact
Water balloon fights are a classic summer tradition, and there are world records for the largest water balloon fight, with thousands of participants.
Source: Definition backfill (hailey)
Related Terms
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See “water balloon” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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