whats‧it /ˈwɒtsɪt $ ˈwɑːts-, ˈwʌts-/
noun [countable][
Date: 1800-1900;
Origin: what's it?]
spoken a word you use when you cannot think of the word you want:
Try and undo the screw to get the whatsit off. [TahlilGaran] Dictionary of Contemporary English ▲