barmy UK /ˈbɑːmi/US /ˈbɑɹmi/adjective 4noun 1forms 3 adjective4 •(UK, informal) Crazy, mad; also, eccentric, odd, strange."Bli'me if I know wot yer all talkin' abaht. You're all barmy on the crumpet," said Liza indignantly, and, turning her back on them, made for home. — 1897 •(UK, informal) Very foolish. •(no longer used) Containing, covered with, or pertaining to barm (“foam rising upon beer or other malt liquors when fermenting, used as leaven in brewing and making bread”).[T]each thy Incubus to Poëtize, / And throvve abroad thy spurious Snotteries, / Vpon that puft-vp Lumpe of Barmy froth, […] — 1601 •(figurative, no longer used) Bubbling with activity or excitement; active, excited.Just now I've taen the fit o' rhyme, / My barmie noddle's working prime, […] — 1786 noun1 •(informal) bar mitzvah formsbarmies · barmier · barmiest