doolally tap adjective 1noun 1forms 2 adjective1 •(UK) Mad, insane, eccentric.Going a bit doolally-tap, if you ask me. Getting odd ideas. — 1985 noun1 •Camp fever; by extension, madness, eccentricity.Mrrhhhh, nothing wrong with me, sergeant, it's just the old Doolally Tap. — 1971 formsmore doolally tap · most doolally tap
