shits hsits sihts ishts hists ihsts shtis hstis sthis tshis htsis thsis siths isths stihs tsihs itshs tishs hitss ihtss htiss thiss ithss tihss shist hsist sihst ishst hisst ihsst shsit hssit sshit sshit hssit shsit sisht issht ssiht ssiht issht sisht hisst ihsst hsist shist ishst sihst shtsi hstsi sthsi tshsi htssi thssi shsti hssti sshti sshti hssti shsti stshi tsshi ssthi ssthi tsshi stshi htssi thssi hstsi shtsi tshsi sthsi sitsh istsh stish tsish itssh tissh sisth issth ssith ssith issth sisth stsih tssih sstih sstih tssih stsih itssh tissh istsh sitsh tsish stish hitss ihtss htiss thiss ithss tihss hists ihsts hsits shits ishts sihts htsis thsis hstis shtis tshis sthis itshs tishs isths siths tsihs stihs
Note: these 'words' (valid or invalid) are all the permutations of the word shits. These words are obtained by scrambling the letters in shits.