turds utrds truds rtuds urtds rutds tudrs utdrs tdurs dturs udtrs dutrs trdus rtdus tdrus dtrus rdtus drtus urdts rudts udrts durts rduts druts tursd utrsd trusd rtusd urtsd rutsd tusrd utsrd tsurd sturd ustrd sutrd trsud rtsud tsrud strud rstud srtud urstd rustd usrtd surtd rsutd srutd tudsr utdsr tdusr dtusr udtsr dutsr tusdr utsdr tsudr studr ustdr sutdr tdsur dtsur tsdur stdur dstur sdtur udstr dustr usdtr sudtr dsutr sdutr trdsu rtdsu tdrsu dtrsu rdtsu drtsu trsdu rtsdu tsrdu strdu rstdu srtdu tdsru dtsru tsdru stdru dstru sdtru rdstu drstu rsdtu srdtu dsrtu sdrtu urdst rudst udrst durst rdust drust ursdt rusdt usrdt surdt rsudt srudt udsrt dusrt usdrt sudrt dsurt sdurt rdsut drsut rsdut srdut dsrut sdrut
Note: these 'words' (valid or invalid) are all the permutations of the word turds. These words are obtained by scrambling the letters in turds.