Definition of whoosis
: someone or something whose name one does not know or cannot recall : an indefinite or unspecified person or thing or one that is representative or typical don't print Senator Whoosis' blowoff yesterday — F. L. Mott the choke will be a whoosis on the dash — F. C. Othman
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Origin and Etymology of whoosis
whoosis perhaps alteration of the expression who's this; whoosy perhaps alteration of the expression who's he
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