irish assurance
Preserved but no longer current.
A bold forward behaviour: as being dipt in the river Styx was formerly supposed to render persons invulnerable, so it is said that a dipping in the river Shannon totally annihilates bashfulness; whence arises the saying of an impudent Irishman, that he has been dipt in the Shannon.
Era: ca. 1811 (Georgian)
Sources & notes
Historical definition reproduced from Grose’s Dictionary of the Vulgar Tongue (1811 edition, public domain; Project Gutenberg #5402, retrieved 2026-07-31). Reflects the attitudes of its era.
Common questions
What does “irish assurance” mean?
A bold forward behaviour: as being dipt in the river Styx was formerly supposed to render persons invulnerable, so it is said that a dipping in the river Shannon totally annihilates bashfulness; whence arises the saying of an impudent Irishman, that he has been dipt in the Shannon.
Is “irish assurance” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.