English · Slang Attested

black ace

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

Meaning · English

An elite mafia hitman.

Where it’s used: Used American English

The big man in the Mafia said: 'Billy, me and the boys are praying for you. We know you're up against the big one this time, the big black ace'.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “black ace” mean?

An elite mafia hitman.

Is “black ace” formal or informal?

black ace is generally slang.

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