what·cha·ma·call·it /ˈwɒtʃəməˌkɔːlɪt $ ˈwɑːtʃəməˌkɒːl-, ˈwʌtʃ-/ noun [countableC] spokenNAME OF A THING a word you use when you cannot remember the name of something 叫什么东西来着〔用于忘记某物的名称时〕 I’ve broken the whatchamacallit on my bag. 我把我包上的那个什么东西弄坏了。
whatchamacallit• Nonsense words of the whatchamacallit type provide an extra resource to keep listeners informed of our word retrieval problems.• The guy was wearing one of those whatchamacallits on his head.