To stitch someone up is to arrange matters so that they end up taking the blame for something, often by planting false evidence or manufacturing a confession against them. It began as a term for the specific injustice of being framed by the police, but it has since spread into everyday use for any situation where a person is unfairly set up, betrayed or cheated, whether by a colleague, a rival or a supposed friend. Someone who has been “stitched up” has been made to look guilty, or has simply been cheated, through someone else’s dishonest manoeuvring.
What’s the origin of the phrase ‘stitch up’?
The Oxford English Dictionary’s earliest recorded citation for the verb is from 1970, in G. F. Newman’s novel Sir, You Bastard: “Your confederate has just about stitched you up.” This was criminal and police slang for incriminating someone to secure a conviction, typically by planting evidence or faking a confession. Green’s Dictionary of Slang classifies the term the same way, as underworld and police usage for engineering a false case against a suspect, before it spread into general use. That broadening shows up quickly in print: a 1977 issue of New Society describes people “stitched up” by the police “or fleeced,” pairing the word with a plainer term for swindling, which suggests the wider, non-criminal sense was already taking hold within a few years of the earliest citation.
It has also been claimed that the expression was already circulating in underworld and police circles as far back as the 1950s, two decades before that 1970 citation, though no example from that period has been traced, so the claim remains unverified.
One suggested explanation looks past sewing altogether, pointing to an older, now-obsolete piece of British slang in which to have “a stitch on” someone meant to bear a grudge against them, which may be closer to the true root of the framing sense than any image of needlework. The intensified form “stitched up like a kipper” is thought to be a later development, formed when this older criminal slang merged with a separate expression, “done up like a kipper,” itself probably the earlier of the two phrases.