1868 Gravesend Reporter 14 Mar. 8/1: Others, however, enlist boldly in the devil’s regiment, and swagger under his colours [...] Blueskins, Dick Turpins, Sheppards, and the whole ill-favoured progeny.at devil’s regiment (n.) under devil, n.
1899 Gravesend Reporter 16 Dec. 3/3: ‘He’s mean he wouldn’t even tell a joke at his own expense’.at so mean... under mean, adj.