grumps rgumps gurmps ugrmps rugmps urgmps grmups rgmups gmrups mgrups rmgups mrgups gumrps ugmrps gmurps mgurps umgrps mugrps rumgps urmgps rmugps mrugps umrgps murgps grupms rgupms gurpms ugrpms rugpms urgpms grpums rgpums gprums pgrums rpgums prgums guprms ugprms gpurms pgurms upgrms pugrms rupgms urpgms rpugms prugms uprgms purgms grmpus rgmpus gmrpus mgrpus rmgpus mrgpus grpmus rgpmus gprmus pgrmus rpgmus prgmus gmprus mgprus gpmrus pgmrus mpgrus pmgrus rmpgus mrpgus rpmgus prmgus mprgus pmrgus gumprs ugmprs gmuprs mguprs umgprs mugprs gupmrs ugpmrs gpumrs pgumrs upgmrs pugmrs gmpurs mgpurs gpmurs pgmurs mpgurs pmgurs umpgrs mupgrs upmgrs pumgrs mpugrs pmugrs rumpgs urmpgs rmupgs mrupgs umrpgs murpgs rupmgs urpmgs rpumgs prumgs uprmgs purmgs rmpugs mrpugs rpmugs prmugs mprugs pmrugs umprgs muprgs upmrgs pumrgs mpurgs pmurgs grumsp rgumsp gurmsp ugrmsp rugmsp urgmsp grmusp rgmusp gmrusp mgrusp rmgusp mrgusp gumrsp ugmrsp gmursp mgursp umgrsp mugrsp rumgsp urmgsp rmugsp mrugsp umrgsp murgsp grusmp rgusmp gursmp ugrsmp rugsmp urgsmp grsump rgsump gsrump sgrump rsgump srgump gusrmp ugsrmp gsurmp sgurmp usgrmp sugrmp rusgmp ursgmp rsugmp srugmp usrgmp surgmp grmsup rgmsup gmrsup mgrsup rmgsup mrgsup grsmup rgsmup gsrmup sgrmup rsgmup srgmup gmsrup mgsrup gsmrup sgmrup msgrup smgrup rmsgup mrsgup rsmgup srmgup msrgup smrgup gumsrp ugmsrp gmusrp mgusrp umgsrp mugsrp gusmrp ugsmrp gsumrp sgumrp usgmrp sugmrp gmsurp mgsurp gsmurp sgmurp msgurp smgurp umsgrp musgrp usmgrp sumgrp msugrp smugrp rumsgp urmsgp rmusgp mrusgp umrsgp mursgp rusmgp ursmgp rsumgp srumgp usrmgp surmgp rmsugp mrsugp rsmugp srmugp msrugp smrugp umsrgp musrgp usmrgp sumrgp msurgp smurgp grupsm rgupsm gurpsm ugrpsm rugpsm urgpsm grpusm rgpusm gprusm pgrusm rpgusm prgusm guprsm ugprsm gpursm pgursm upgrsm pugrsm rupgsm urpgsm rpugsm prugsm uprgsm purgsm gruspm rguspm gurspm ugrspm rugspm urgspm grsupm rgsupm gsrupm sgrupm rsgupm srgupm gusrpm ugsrpm gsurpm sgurpm usgrpm sugrpm rusgpm ursgpm rsugpm srugpm usrgpm surgpm grpsum rgpsum gprsum pgrsum rpgsum prgsum grspum rgspum gsrpum sgrpum rsgpum srgpum gpsrum pgsrum gsprum sgprum psgrum spgrum rpsgum prsgum rspgum srpgum psrgum sprgum gupsrm ugpsrm gpusrm pgusrm upgsrm pugsrm gusprm ugsprm gsuprm sguprm usgprm sugprm gpsurm pgsurm gspurm sgpurm psgurm spgurm upsgrm pusgrm uspgrm supgrm psugrm spugrm rupsgm urpsgm rpusgm prusgm uprsgm pursgm ruspgm urspgm rsupgm srupgm usrpgm surpgm rpsugm prsugm rspugm srpugm psrugm sprugm upsrgm pusrgm usprgm suprgm psurgm spurgm grmpsu rgmpsu gmrpsu mgrpsu rmgpsu mrgpsu grpmsu rgpmsu gprmsu pgrmsu rpgmsu prgmsu gmprsu mgprsu gpmrsu pgmrsu mpgrsu pmgrsu rmpgsu mrpgsu rpmgsu prmgsu mprgsu pmrgsu grmspu rgmspu gmrspu mgrspu rmgspu mrgspu grsmpu rgsmpu gsrmpu sgrmpu rsgmpu srgmpu gmsrpu mgsrpu gsmrpu sgmrpu msgrpu smgrpu rmsgpu mrsgpu rsmgpu srmgpu msrgpu smrgpu grpsmu rgpsmu gprsmu pgrsmu rpgsmu prgsmu grspmu rgspmu gsrpmu sgrpmu rsgpmu srgpmu gpsrmu pgsrmu gsprmu sgprmu psgrmu spgrmu rpsgmu prsgmu rspgmu srpgmu psrgmu sprgmu gmpsru mgpsru gpmsru pgmsru mpgsru pmgsru gmspru mgspru gsmpru sgmpru msgpru smgpru gpsmru pgsmru gspmru sgpmru psgmru spgmru mpsgru pmsgru mspgru smpgru psmgru spmgru rmpsgu mrpsgu rpmsgu prmsgu mprsgu pmrsgu rmspgu mrspgu rsmpgu srmpgu msrpgu smrpgu rpsmgu prsmgu rspmgu srpmgu psrmgu sprmgu mpsrgu pmsrgu msprgu smprgu psmrgu spmrgu gumpsr ugmpsr gmupsr mgupsr umgpsr mugpsr gupmsr ugpmsr gpumsr pgumsr upgmsr pugmsr gmpusr mgpusr gpmusr pgmusr mpgusr pmgusr umpgsr mupgsr upmgsr pumgsr mpugsr pmugsr gumspr ugmspr gmuspr mguspr umgspr mugspr gusmpr ugsmpr gsumpr sgumpr usgmpr sugmpr gmsupr mgsupr gsmupr sgmupr msgupr smgupr umsgpr musgpr usmgpr sumgpr msugpr smugpr gupsmr ugpsmr gpusmr pgusmr upgsmr pugsmr guspmr ugspmr gsupmr sgupmr usgpmr sugpmr gpsumr pgsumr gspumr sgpumr psgumr spgumr upsgmr pusgmr uspgmr supgmr psugmr spugmr gmpsur mgpsur gpmsur pgmsur mpgsur pmgsur gmspur mgspur gsmpur sgmpur msgpur smgpur gpsmur pgsmur gspmur sgpmur psgmur spgmur mpsgur pmsgur mspgur smpgur psmgur spmgur umpsgr mupsgr upmsgr pumsgr mpusgr pmusgr umspgr muspgr usmpgr sumpgr msupgr smupgr upsmgr pusmgr uspmgr supmgr psumgr spumgr mpsugr pmsugr mspugr smpugr psmugr spmugr rumpsg urmpsg rmupsg mrupsg umrpsg murpsg rupmsg urpmsg rpumsg prumsg uprmsg purmsg rmpusg mrpusg rpmusg prmusg mprusg pmrusg umprsg muprsg upmrsg pumrsg mpursg pmursg rumspg urmspg rmuspg mruspg umrspg murspg rusmpg ursmpg rsumpg srumpg usrmpg surmpg rmsupg mrsupg rsmupg srmupg msrupg smrupg umsrpg musrpg usmrpg sumrpg msurpg smurpg rupsmg urpsmg rpusmg prusmg uprsmg pursmg ruspmg urspmg rsupmg srupmg usrpmg surpmg rpsumg prsumg rspumg srpumg psrumg sprumg upsrmg pusrmg usprmg suprmg psurmg spurmg rmpsug mrpsug rpmsug prmsug mprsug pmrsug rmspug mrspug rsmpug srmpug msrpug smrpug rpsmug prsmug rspmug srpmug psrmug sprmug mpsrug pmsrug msprug smprug psmrug spmrug umpsrg mupsrg upmsrg pumsrg mpusrg pmusrg umsprg musprg usmprg sumprg msuprg smuprg upsmrg pusmrg uspmrg supmrg psumrg spumrg mpsurg pmsurg mspurg smpurg psmurg spmurg
Note: these 'words' (valid or invalid) are all the permutations of the word grumps. These words are obtained by scrambling the letters in grumps.