sister from another mister UK /ˈsɪstə(ɹ)fɹəm əˈnʌðə(ɹ)ˈmɪstə(ɹ)/US /ˈsɪstɚ fɹəm əˈnʌðə ˈmɪstɚ/ noun1 •(informal) A very close female friend.My deepest thanks to my sister, Pamela Wilson and to my brother from another mother, Richard Montgomery, and my sister from another mister, Muriel Funches. — 2010 formssisters from another mister · sisters from other misters
