M. Davitt Leaves from a Prison Diary I 142: ‘Putting on the barmy stick’ is one of the plans not infrequently tried as a means of shirking labour and obtaining the relaxation of discipline [...] This consists in simulating madness. [Ibid.] 144: No such abominable practice was adopted towards even known ‘barmy stick’ prisoners during my stay at Millbank.at put on the barmy stick (v.) under barmy, adj.