English · Slang Attested

spit valve

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

The water key found on brass instruments.

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 “spit valve” mean?

The water key found on brass instruments.

Is “spit valve” formal or informal?

spit valve is generally slang.

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