What does brassed mean?
"Brassed" is best known today as the first half of the informal British expression "brassed off," which means annoyed, fed up, or thoroughly dispirited. Someone who is brassed off is irritated to the point of exasperation, whether by circumstances at work, repeated disappointments, or everyday frustrations. The phrase carries a colloquial, working-class flavor and appears frequently in British journalism, fiction, and conversation, though it remains largely unfamiliar in North America. Separately, "brassed" functions as the past tense of the verb "to brass," meaning to coat or plate something with brass, as when metal fittings are brassed to give them a golden finish. This technical use is comparatively rare and confined mainly to craft and manufacturing contexts. The two senses share only their origin in the noun "brass" itself. In everyday usage, then, encountering "brassed" almost always signals the slangy, disaffected mood of someone who has simply had enough.
Annoyed, fed up, or disheartened — used almost exclusively in the informal British phrase 'brassed off'.
"By Friday afternoon he was completely brassed off with the whole project."
Strongly informal and chiefly British.
Past tense and past participle of 'brass': to coat or cover with brass.
"The fittings were brassed by hand in the workshop."
Technical and rare outside craft and manufacturing contexts.
In British slang, being 'brassed off' has nothing to do with music or plumbing — it means you're completely fed up.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of brassed
Both senses derive from the noun "brass," the yellow copper-zinc alloy, whose name came into Middle English from Old English "bræs." The slang sense arose in mid-twentieth-century Britain, where "brassed off" developed as an intensifier of displeasure, likely by analogy with expressions like "cheesed off" rather than from any literal connection to the metal. The plating sense simply extends the material name into a verb describing application of that metal to a surface.
Related word forms
How brassed is actually used
The adjective sense is strongly informal and distinctly British; American readers may not recognize it. Outside the fixed phrase 'brassed off', the adjectival use is rare, and the verbal sense (plated with brass) is technical and uncommon.
Easily confused with brassed
'Basted' means moistened with cooking juices or stitched loosely, while 'brassed' means coated with brass or, in slang, fed up.