The phonetic transcription of "whatsit" is /ˈwɒtsɪt/ in British English and /ˈwʌtsɪt/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "whatsit": thing, object, gadget, doohickey, thingamajig, whatchamacallit.
Example usage of "whatsit": "Can you pass me that whatsit over there?". More examples on the page.