smerk mserk semrk esmrk mesrk emsrk smrek msrek srmek rsmek mrsek rmsek sermk esrmk sremk rsemk ersmk resmk mersk emrsk mresk rmesk ermsk remsk smekr msekr semkr esmkr meskr emskr smker msker skmer ksmer mkser kmser sekmr eskmr skemr ksemr eksmr kesmr meksr emksr mkesr kmesr ekmsr kemsr smrke msrke srmke rsmke mrske rmske smkre mskre skmre ksmre mksre kmsre srkme rskme skrme ksrme rksme krsme mrkse rmkse mkrse kmrse rkmse krmse serkm esrkm srekm rsekm erskm reskm sekrm eskrm skerm kserm eksrm kesrm srkem rskem skrem ksrem rksem krsem erksm reksm ekrsm kersm rkesm kresm merks emrks mreks rmeks ermks remks mekrs emkrs mkers kmers ekmrs kemrs mrkes rmkes mkres kmres rkmes krmes erkms rekms ekrms kerms rkems krems
Note: these 'words' (valid or invalid) are all the permutations of the word smerk. These words are obtained by scrambling the letters in smerk.