The phonetic transcription of "whatchamacallit" is /ˌwɒtʃ.ə.məˈkɔː.lɪt/ in British English and /ˌwɑː.tʃə.məˈkɑː.lɪt/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "whatchamacallit": doohickey, whatsit, thingamajig, widget, thingy.
Example usage of "whatchamacallit": "I need that whatchamacallit to fix this.". More examples on the page.