whoot hwoot wohot owhot howot ohwot whoot hwoot wohot owhot howot ohwot wooht owoht wooht owoht oowht oowht hoowt ohowt hoowt ohowt oohwt oohwt whoto hwoto wohto owhto howto ohwto whtoo hwtoo wthoo twhoo htwoo thwoo wotho owtho wtoho twoho otwho towho hotwo ohtwo htowo thowo othwo tohwo whoto hwoto wohto owhto howto ohwto whtoo hwtoo wthoo twhoo htwoo thwoo wotho owtho wtoho twoho otwho towho hotwo ohtwo htowo thowo othwo tohwo wooth owoth wooth owoth oowth oowth wotoh owtoh wtooh twooh otwoh towoh wotoh owtoh wtooh twooh otwoh towoh ootwh ootwh otowh toowh otowh toowh hootw ohotw hootw ohotw oohtw oohtw hotow ohtow htoow thoow othow tohow hotow ohtow htoow thoow othow tohow oothw oothw otohw toohw otohw toohw
Note: these 'words' (valid or invalid) are all the permutations of the word whoot. These words are obtained by scrambling the letters in whoot.