pisser ipsser psiser spiser ispser sipser pisser ipsser psiser spiser ispser sipser pssier spsier pssier spsier sspier sspier issper sisper issper sisper ssiper ssiper pisesr ipsesr psiesr spiesr ispesr sipesr piessr ipessr peissr epissr iepssr eipssr pseisr speisr pesisr epsisr sepisr espisr isepsr siepsr iespsr eispsr seipsr esipsr pisesr ipsesr psiesr spiesr ispesr sipesr piessr ipessr peissr epissr iepssr eipssr pseisr speisr pesisr epsisr sepisr espisr isepsr siepsr iespsr eispsr seipsr esipsr psseir spseir psseir spseir sspeir sspeir psesir spesir pessir epssir sepsir espsir psesir spesir pessir epssir sepsir espsir ssepir ssepir sespir esspir sespir esspir issepr sisepr issepr sisepr ssiepr ssiepr isespr siespr iesspr eisspr seispr esispr isespr siespr iesspr eisspr seispr esispr sseipr sseipr sesipr essipr sesipr essipr pissre ipssre psisre spisre ispsre sipsre pissre ipssre psisre spisre ispsre sipsre pssire spsire pssire spsire sspire sspire isspre sispre isspre sispre ssipre ssipre pisrse ipsrse psirse spirse isprse siprse pirsse iprsse prisse rpisse irpsse ripsse psrise sprise prsise rpsise srpise rspise isrpse sirpse irspse rispse sripse rsipse pisrse ipsrse psirse spirse isprse siprse pirsse iprsse prisse rpisse irpsse ripsse psrise sprise prsise rpsise srpise rspise isrpse sirpse irspse rispse sripse rsipse pssrie spsrie pssrie spsrie ssprie ssprie psrsie sprsie prssie rpssie srpsie rspsie psrsie sprsie prssie rpssie srpsie rspsie ssrpie ssrpie srspie rsspie srspie rsspie issrpe sisrpe issrpe sisrpe ssirpe ssirpe isrspe sirspe irsspe risspe srispe rsispe isrspe sirspe irsspe risspe srispe rsispe ssripe ssripe srsipe rssipe srsipe rssipe pisers ipsers psiers spiers ispers sipers piesrs ipesrs peisrs episrs iepsrs eipsrs pseirs speirs pesirs epsirs sepirs espirs iseprs sieprs iesprs eisprs seiprs esiprs pisres ipsres psires spires ispres sipres pirses iprses prises rpises irpses ripses psries spries prsies rpsies srpies rspies isrpes sirpes irspes rispes sripes rsipes pierss iperss peirss epirss ieprss eiprss piress ipress priess rpiess irpess ripess periss epriss preiss rpeiss erpiss repiss ierpss eirpss irepss riepss eripss reipss pseris speris pesris epsris sepris espris psreis spreis prseis rpseis srpeis rspeis persis eprsis presis rpesis erpsis repsis serpis esrpis srepis rsepis erspis respis iserps sierps iesrps eisrps seirps esirps isreps sireps irseps riseps srieps rsieps iersps eirsps iresps riesps erisps reisps serips esrips sreips rseips ersips resips pisers ipsers psiers spiers ispers sipers piesrs ipesrs peisrs episrs iepsrs eipsrs pseirs speirs pesirs epsirs sepirs espirs iseprs sieprs iesprs eisprs seiprs esiprs pisres ipsres psires spires ispres sipres pirses iprses prises rpises irpses ripses psries spries prsies rpsies srpies rspies isrpes sirpes irspes rispes sripes rsipes pierss iperss peirss epirss ieprss eiprss piress ipress priess rpiess irpess ripess periss epriss preiss rpeiss erpiss repiss ierpss eirpss irepss riepss eripss reipss pseris speris pesris epsris sepris espris psreis spreis prseis rpseis srpeis rspeis persis eprsis presis rpesis erpsis repsis serpis esrpis srepis rsepis erspis respis iserps sierps iesrps eisrps seirps esirps isreps sireps irseps riseps srieps rsieps iersps eirsps iresps riesps erisps reisps serips esrips sreips rseips ersips resips psseri spseri psseri spseri ssperi ssperi psesri spesri pessri epssri sepsri espsri psesri spesri pessri epssri sepsri espsri ssepri ssepri sespri esspri sespri esspri pssrei spsrei pssrei spsrei ssprei ssprei psrsei sprsei prssei rpssei srpsei rspsei psrsei sprsei prssei rpssei srpsei rspsei ssrpei ssrpei srspei rsspei srspei rsspei psersi spersi pesrsi epsrsi seprsi esprsi psresi spresi prsesi rpsesi srpesi rspesi perssi eprssi pressi rpessi erpssi repssi serpsi esrpsi srepsi rsepsi erspsi respsi psersi spersi pesrsi epsrsi seprsi esprsi psresi spresi prsesi rpsesi srpesi rspesi perssi eprssi pressi rpessi erpssi repssi serpsi esrpsi srepsi rsepsi erspsi respsi sserpi sserpi sesrpi essrpi sesrpi essrpi ssrepi ssrepi srsepi rssepi srsepi rssepi serspi esrspi srespi rsespi ersspi resspi serspi esrspi srespi rsespi ersspi resspi isserp siserp isserp siserp ssierp ssierp isesrp siesrp iessrp eissrp seisrp esisrp isesrp siesrp iessrp eissrp seisrp esisrp sseirp sseirp sesirp essirp sesirp essirp issrep sisrep issrep sisrep ssirep ssirep isrsep sirsep irssep rissep srisep rsisep isrsep sirsep irssep rissep srisep rsisep ssriep ssriep srsiep rssiep srsiep rssiep isersp siersp iesrsp eisrsp seirsp esirsp isresp siresp irsesp risesp sriesp rsiesp ierssp eirssp iressp riessp erissp reissp serisp esrisp sreisp rseisp ersisp resisp isersp siersp iesrsp eisrsp seirsp esirsp isresp siresp irsesp risesp sriesp rsiesp ierssp eirssp iressp riessp erissp reissp serisp esrisp sreisp rseisp ersisp resisp sserip sserip sesrip essrip sesrip essrip ssreip ssreip srseip rsseip srseip rsseip sersip esrsip sresip rsesip erssip ressip sersip esrsip sresip rsesip erssip ressip
Note: these 'words' (valid or invalid) are all the permutations of the word pisser. These words are obtained by scrambling the letters in pisser.