Plural of gib; castrated cats, or castrated animals in general; also in gaming slang, body parts that fly off during an explosion.
From the noun 'gib', possibly from the proper name Gilbert, used as a generic term for a male animal (like 'tom' for tomcat). In modern gaming, it extends to mean fragmenting body parts.
It's wild that 'gibs' is now primarily known as a gaming term (thanks to 1990s shooters), completely overshadowing its original meaning. This shows how video games have become a powerful source of new slang!
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