m' determiner 2contraction 1 determiner2 •(literary, rare) Prevocalic form of my. •(informal, no longer used) Clitic form of my.‘Guess I feel like sleepin’ meself,’ he said. ‘Trouble is, I’m on next watch. Guess I’ll change thet with m’tired friend there.[…]” — 1985 contraction1 •(informal) Clitic form of I'm.When MacConnachie let go, he put a hand to his head and muttered, “M’tired.” — 1968