smuck msuck sumck usmck musck umsck smcuk mscuk scmuk csmuk mcsuk cmsuk sucmk uscmk scumk csumk ucsmk cusmk mucsk umcsk mcusk cmusk ucmsk cumsk smukc msukc sumkc usmkc muskc umskc smkuc mskuc skmuc ksmuc mksuc kmsuc sukmc uskmc skumc ksumc uksmc kusmc muksc umksc mkusc kmusc ukmsc kumsc smcku mscku scmku csmku mcsku cmsku smkcu mskcu skmcu ksmcu mkscu kmscu sckmu cskmu skcmu kscmu cksmu kcsmu mcksu cmksu mkcsu kmcsu ckmsu kcmsu suckm usckm scukm csukm ucskm cuskm sukcm uskcm skucm ksucm ukscm kuscm sckum cskum skcum kscum cksum kcsum ucksm cuksm ukcsm kucsm ckusm kcusm mucks umcks mcuks cmuks ucmks cumks mukcs umkcs mkucs kmucs ukmcs kumcs mckus cmkus mkcus kmcus ckmus kcmus uckms cukms ukcms kucms ckums kcums
Note: these 'words' (valid or invalid) are all the permutations of the word smuck. These words are obtained by scrambling the letters in smuck.