yawper aywper ywaper wyaper awyper wayper yapwer aypwer ypawer pyawer apywer paywer ywpaer wypaer ypwaer pywaer wpyaer pwyaer awpyer wapyer apwyer pawyer wpayer pwayer yawepr aywepr ywaepr wyaepr awyepr wayepr yaewpr ayewpr yeawpr eyawpr aeywpr eaywpr yweapr wyeapr yewapr eywapr weyapr ewyapr aweypr waeypr aewypr eawypr weaypr ewaypr yapewr aypewr ypaewr pyaewr apyewr payewr yaepwr ayepwr yeapwr eyapwr aeypwr eaypwr ypeawr pyeawr yepawr eypawr peyawr epyawr apeywr paeywr aepywr eapywr peaywr epaywr ywpear wypear ypwear pywear wpyear pwyear ywepar wyepar yewpar eywpar weypar ewypar ypewar pyewar yepwar eypwar peywar epywar wpeyar pweyar wepyar ewpyar pewyar epwyar awpeyr wapeyr apweyr paweyr wpaeyr pwaeyr awepyr waepyr aewpyr eawpyr weapyr ewapyr apewyr paewyr aepwyr eapwyr peawyr epawyr wpeayr pweayr wepayr ewpayr pewayr epwayr yawpre aywpre ywapre wyapre awypre waypre yapwre aypwre ypawre pyawre apywre paywre ywpare wypare ypware pyware wpyare pwyare awpyre wapyre apwyre pawyre wpayre pwayre yawrpe aywrpe ywarpe wyarpe awyrpe wayrpe yarwpe ayrwpe yrawpe ryawpe arywpe raywpe ywrape wyrape yrwape rywape wryape rwyape awrype warype arwype rawype wraype rwaype yaprwe ayprwe yparwe pyarwe apyrwe payrwe yarpwe ayrpwe yrapwe ryapwe arypwe raypwe yprawe pyrawe yrpawe rypawe pryawe rpyawe aprywe parywe arpywe rapywe praywe rpaywe ywprae wyprae ypwrae pywrae wpyrae pwyrae ywrpae wyrpae yrwpae rywpae wrypae rwypae yprwae pyrwae yrpwae rypwae prywae rpywae wpryae pwryae wrpyae rwpyae prwyae rpwyae awprye waprye apwrye pawrye wparye pwarye awrpye warpye arwpye rawpye wrapye rwapye aprwye parwye arpwye rapwye prawye rpawye wpraye pwraye wrpaye rwpaye prwaye rpwaye yawerp aywerp ywaerp wyaerp awyerp wayerp yaewrp ayewrp yeawrp eyawrp aeywrp eaywrp ywearp wyearp yewarp eywarp weyarp ewyarp aweyrp waeyrp aewyrp eawyrp weayrp ewayrp yawrep aywrep ywarep wyarep awyrep wayrep yarwep ayrwep yrawep ryawep arywep raywep ywraep wyraep yrwaep rywaep wryaep rwyaep awryep waryep arwyep rawyep wrayep rwayep yaerwp ayerwp yearwp eyarwp aeyrwp eayrwp yarewp ayrewp yraewp ryaewp aryewp rayewp yerawp eyrawp yreawp ryeawp eryawp reyawp aerywp earywp areywp raeywp eraywp reaywp ywerap wyerap yewrap eywrap weyrap ewyrap ywreap wyreap yrweap ryweap wryeap rwyeap yerwap eyrwap yrewap ryewap erywap reywap weryap ewryap wreyap rweyap erwyap rewyap aweryp waeryp aewryp eawryp wearyp ewaryp awreyp wareyp arweyp raweyp wraeyp rwaeyp aerwyp earwyp arewyp raewyp erawyp reawyp werayp ewrayp wreayp rweayp erwayp rewayp yaperw ayperw ypaerw pyaerw apyerw payerw yaeprw ayeprw yeaprw eyaprw aeyprw eayprw ypearw pyearw yeparw eyparw peyarw epyarw apeyrw paeyrw aepyrw eapyrw peayrw epayrw yaprew ayprew yparew pyarew apyrew payrew yarpew ayrpew yrapew ryapew arypew raypew ypraew pyraew yrpaew rypaew pryaew rpyaew apryew paryew arpyew rapyew prayew rpayew yaerpw ayerpw yearpw eyarpw aeyrpw eayrpw yarepw ayrepw yraepw ryaepw aryepw rayepw yerapw eyrapw yreapw ryeapw eryapw reyapw aerypw earypw areypw raeypw eraypw reaypw yperaw pyeraw yepraw eypraw peyraw epyraw ypreaw pyreaw yrpeaw rypeaw pryeaw rpyeaw yerpaw eyrpaw yrepaw ryepaw erypaw reypaw peryaw epryaw preyaw rpeyaw erpyaw repyaw aperyw paeryw aepryw eapryw pearyw eparyw apreyw pareyw arpeyw rapeyw praeyw rpaeyw aerpyw earpyw arepyw raepyw erapyw reapyw perayw eprayw preayw rpeayw erpayw repayw ywpera wypera ypwera pywera wpyera pwyera ywepra wyepra yewpra eywpra weypra ewypra ypewra pyewra yepwra eypwra peywra epywra wpeyra pweyra wepyra ewpyra pewyra epwyra ywprea wyprea ypwrea pywrea wpyrea pwyrea ywrpea wyrpea yrwpea rywpea wrypea rwypea yprwea pyrwea yrpwea rypwea prywea rpywea wpryea pwryea wrpyea rwpyea prwyea rpwyea ywerpa wyerpa yewrpa eywrpa weyrpa ewyrpa ywrepa wyrepa yrwepa rywepa wryepa rwyepa yerwpa eyrwpa yrewpa ryewpa erywpa reywpa werypa ewrypa wreypa rweypa erwypa rewypa yperwa pyerwa yeprwa eyprwa peyrwa epyrwa yprewa pyrewa yrpewa rypewa pryewa rpyewa yerpwa eyrpwa yrepwa ryepwa erypwa reypwa perywa eprywa preywa rpeywa erpywa repywa wperya pwerya weprya ewprya pewrya epwrya wpreya pwreya wrpeya rwpeya prweya rpweya werpya ewrpya wrepya rwepya erwpya rewpya perwya eprwya prewya rpewya erpwya repwya awpery wapery apwery pawery wpaery pwaery awepry waepry aewpry eawpry weapry ewapry apewry paewry aepwry eapwry peawry epawry wpeary pweary wepary ewpary pewary epwary awprey waprey apwrey pawrey wparey pwarey awrpey warpey arwpey rawpey wrapey rwapey aprwey parwey arpwey rapwey prawey rpawey wpraey pwraey wrpaey rwpaey prwaey rpwaey awerpy waerpy aewrpy eawrpy wearpy ewarpy awrepy warepy arwepy rawepy wraepy rwaepy aerwpy earwpy arewpy raewpy erawpy reawpy werapy ewrapy wreapy rweapy erwapy rewapy aperwy paerwy aeprwy eaprwy pearwy eparwy aprewy parewy arpewy rapewy praewy rpaewy aerpwy earpwy arepwy raepwy erapwy reapwy perawy eprawy preawy rpeawy erpawy repawy wperay pweray wepray ewpray pewray epwray wpreay pwreay wrpeay rwpeay prweay rpweay werpay ewrpay wrepay rwepay erwpay rewpay perway eprway preway rpeway erpway repway
Note: these 'words' (valid or invalid) are all the permutations of the word yawper. These words are obtained by scrambling the letters in yawper.