From Longman Dictionary of Contemporary Englishcoat hangerˈcoat ˌhanger noun [countable] DCan object that you use to hang clothes on SYN hanger
Examples from the Corpus
coat hanger• Application Tell the students that chimes can be made by using a metal spoon instead of a coat hanger.• The vibrations you heard traveled through the metal coat hanger, then through the string and the pencils to your ear drum.