Ireland, 1889—emphasises the truthfulness and sincerity of what one is saying—derives from a children’s oath which involved licking a finger, drying it, and drawing it across the throat while saying “My finger’s wet. My finger’s dry. Cut my throat if I tell a lie.”
UK, 1773—physical cleanliness betokens spiritual purity, i.e., cleanliness proceeds from piety—apparently, this phrase is erroneously ascribed to the English preacher and co-founder of Methodism John Wesley
1945—a woman from Liverpool, a city and seaport in north-western England—from the noun ‘Scouser’, denoting a person from Liverpool, and the suffix ‘-ette’, used to form nouns denoting female gender
Northern England—a filled or open sandwich—originally (1827): a slice of bread spread with butter—composed of ‘butt-’, from the noun ‘butter’, and the suffix ‘-y’, forming diminutive nouns
denotes a foot or a boot, especially a big one—1856, in the caption to a cartoon by John Leech, published in Punch (London, England): “A vulgar and disgusting expression, implying that a foot is big enough, and flat enough, to kill Black-beetles”
UK, 1958—The phrase ‘we’ve got a right one here’ is used of an odd person or of an idiot. Typically, the speaker uses this phrase when talking to someone about a third party.
Lancashire, England, 1973—a wasted journey; a weird way of behaving; a fit of ill temper—origin unknown—one hypothesis is that when wine boats from the Mediterranean arrived in Liverpool, the wine was occasionally sour and therefore useless
USA, 1812—UK, 1818—the name of a character proverbially said to have been so great a liar that he was expelled from Hell—hence, frequently in ‘a bigger liar than Tom Pepper’, and variants: an outrageous liar
Lancashire, England, 1833—a faggot, a meatball, “a compound of onions, flour, and small pieces of pork” (The Liverpool Echo, 20 August 1880)—probably one of the common dishes humorously named after daintier items of food