smash msash samsh asmsh massh amssh smsah mssah ssmah ssmah mssah smsah sasmh assmh ssamh ssamh assmh sasmh massh amssh msash smash asmsh samsh smahs msahs samhs asmhs mashs amshs smhas mshas shmas hsmas mhsas hmsas sahms ashms shams hsams ahsms hasms mahss amhss mhass hmass ahmss hamss smsha mssha ssmha ssmha mssha smsha smhsa mshsa shmsa hsmsa mhssa hmssa sshma sshma shsma hssma shsma hssma mshsa smhsa mhssa hmssa shmsa hsmsa sashm asshm ssahm ssahm asshm sashm sahsm ashsm shasm hsasm ahssm hassm ssham ssham shsam hssam shsam hssam ashsm sahsm ahssm hassm shasm hsasm mashs amshs msahs smahs asmhs samhs mahss amhss mhass hmass ahmss hamss mshas smhas mhsas hmsas shmas hsmas ashms sahms ahsms hasms shams hsams
Note: these 'words' (valid or invalid) are all the permutations of the word smash. These words are obtained by scrambling the letters in smash.