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whatsit
(hwŏtˈsĭt, hwŭtˈ-, wŏtˈ-, wŭtˈ-) or what·sis (-sĭs)
nounInformal
Something or someone whose name has been forgotten or is not known.
(hwŏtˈsĭt, hwŭtˈ-, wŏtˈ-, wŭtˈ-) or what·sis (-sĭs)
noun