noah's ark
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
A shark.
Register: slang
Where it’s used:
Used
Australian English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
A nark (spoilsport).
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “noah's ark” mean?
A shark.
Is “noah's ark” formal or informal?
noah's ark is generally slang.