Jack Shalloo
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
A (male) braggart.
Register: dated, slang
Where it’s used:
Used
American English
Examples
A fine lad, though maybe a bit of a Jack Shalloo with the great talk.
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).
Sense 2
Meaning · English
A careless or happy-go-lucky man.
Register: dated, slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “Jack Shalloo” mean?
A (male) braggart.
Is “Jack Shalloo” formal or informal?
Jack Shalloo is generally dated, slang.