tuwhit tuwhoo /tʊˌwɪt tʊˈwuː/exclamation 1noun 1forms 1 exclamation1 •The hoot of a tawny owl. noun1 •The hoot of a tawny owl.Thy tuwhits are lull'd I wot, / Thy tuwhoos of yesternight,[…] — 1842 formstuwhit tuwhoos