yopper oypper ypoper pyoper opyper poyper yopper oypper ypoper pyoper opyper poyper yppoer pypoer yppoer pypoer ppyoer ppyoer oppyer popyer oppyer popyer ppoyer ppoyer yopepr oypepr ypoepr pyoepr opyepr poyepr yoeppr oyeppr yeoppr eyoppr oeyppr eoyppr ypeopr pyeopr yepopr eypopr peyopr epyopr opeypr poeypr oepypr eopypr peoypr epoypr yopepr oypepr ypoepr pyoepr opyepr poyepr yoeppr oyeppr yeoppr eyoppr oeyppr eoyppr ypeopr pyeopr yepopr eypopr peyopr epyopr opeypr poeypr oepypr eopypr peoypr epoypr yppeor pypeor yppeor pypeor ppyeor ppyeor ypepor pyepor yeppor eyppor peypor epypor ypepor pyepor yeppor eyppor peypor epypor ppeyor ppeyor pepyor eppyor pepyor eppyor oppeyr popeyr oppeyr popeyr ppoeyr ppoeyr opepyr poepyr oeppyr eoppyr peopyr epopyr opepyr poepyr oeppyr eoppyr peopyr epopyr ppeoyr ppeoyr pepoyr eppoyr pepoyr eppoyr yoppre oyppre ypopre pyopre opypre poypre yoppre oyppre ypopre pyopre opypre poypre yppore pypore yppore pypore ppyore ppyore oppyre popyre oppyre popyre ppoyre ppoyre yoprpe oyprpe yporpe pyorpe opyrpe poyrpe yorppe oyrppe yroppe ryoppe oryppe royppe yprope pyrope yrpope rypope pryope rpyope oprype porype orpype ropype proype rpoype yoprpe oyprpe yporpe pyorpe opyrpe poyrpe yorppe oyrppe yroppe ryoppe oryppe royppe yprope pyrope yrpope rypope pryope rpyope oprype porype orpype ropype proype rpoype ypproe pyproe ypproe pyproe ppyroe ppyroe yprpoe pyrpoe yrppoe ryppoe prypoe rpypoe yprpoe pyrpoe yrppoe ryppoe prypoe rpypoe ppryoe ppryoe prpyoe rppyoe prpyoe rppyoe opprye poprye opprye poprye pporye pporye oprpye porpye orppye roppye propye rpopye oprpye porpye orppye roppye propye rpopye pproye pproye prpoye rppoye prpoye rppoye yoperp oyperp ypoerp pyoerp opyerp poyerp yoeprp oyeprp yeoprp eyoprp oeyprp eoyprp ypeorp pyeorp yeporp eyporp peyorp epyorp opeyrp poeyrp oepyrp eopyrp peoyrp epoyrp yoprep oyprep yporep pyorep opyrep poyrep yorpep oyrpep yropep ryopep orypep roypep yproep pyroep yrpoep rypoep pryoep rpyoep opryep poryep orpyep ropyep proyep rpoyep yoerpp oyerpp yeorpp eyorpp oeyrpp eoyrpp yorepp oyrepp yroepp ryoepp oryepp royepp yeropp eyropp yreopp ryeopp eryopp reyopp oerypp eorypp oreypp roeypp eroypp reoypp yperop pyerop yeprop eyprop peyrop epyrop ypreop pyreop yrpeop rypeop pryeop rpyeop yerpop eyrpop yrepop ryepop erypop reypop peryop epryop preyop rpeyop erpyop repyop operyp poeryp oepryp eopryp peoryp eporyp opreyp poreyp orpeyp ropeyp proeyp rpoeyp oerpyp eorpyp orepyp roepyp eropyp reopyp peroyp eproyp preoyp rpeoyp erpoyp repoyp yoperp oyperp ypoerp pyoerp opyerp poyerp yoeprp oyeprp yeoprp eyoprp oeyprp eoyprp ypeorp pyeorp yeporp eyporp peyorp epyorp opeyrp poeyrp oepyrp eopyrp peoyrp epoyrp yoprep oyprep yporep pyorep opyrep poyrep yorpep oyrpep yropep ryopep orypep roypep yproep pyroep yrpoep rypoep pryoep rpyoep opryep poryep orpyep ropyep proyep rpoyep yoerpp oyerpp yeorpp eyorpp oeyrpp eoyrpp yorepp oyrepp yroepp ryoepp oryepp royepp yeropp eyropp yreopp ryeopp eryopp reyopp oerypp eorypp oreypp roeypp eroypp reoypp yperop pyerop yeprop eyprop peyrop epyrop ypreop pyreop yrpeop rypeop pryeop rpyeop yerpop eyrpop yrepop ryepop erypop reypop peryop epryop preyop rpeyop erpyop repyop operyp poeryp oepryp eopryp peoryp eporyp opreyp poreyp orpeyp ropeyp proeyp rpoeyp oerpyp eorpyp orepyp roepyp eropyp reopyp peroyp eproyp preoyp rpeoyp erpoyp repoyp yppero pypero yppero pypero ppyero ppyero ypepro pyepro yeppro eyppro peypro epypro ypepro pyepro yeppro eyppro peypro epypro ppeyro ppeyro pepyro eppyro pepyro eppyro yppreo pypreo yppreo pypreo ppyreo ppyreo yprpeo pyrpeo yrppeo ryppeo prypeo rpypeo yprpeo pyrpeo yrppeo ryppeo prypeo rpypeo ppryeo ppryeo prpyeo rppyeo prpyeo rppyeo yperpo pyerpo yeprpo eyprpo peyrpo epyrpo yprepo pyrepo yrpepo rypepo pryepo rpyepo yerppo eyrppo yreppo ryeppo eryppo reyppo perypo eprypo preypo rpeypo erpypo repypo yperpo pyerpo yeprpo eyprpo peyrpo epyrpo yprepo pyrepo yrpepo rypepo pryepo rpyepo yerppo eyrppo yreppo ryeppo eryppo reyppo perypo eprypo preypo rpeypo erpypo repypo pperyo pperyo pepryo eppryo pepryo eppryo ppreyo ppreyo prpeyo rppeyo prpeyo rppeyo perpyo eprpyo prepyo rpepyo erppyo reppyo perpyo eprpyo prepyo rpepyo erppyo reppyo oppery popery oppery popery ppoery ppoery opepry poepry oeppry eoppry peopry epopry opepry poepry oeppry eoppry peopry epopry ppeory ppeory pepory eppory pepory eppory opprey poprey opprey poprey pporey pporey oprpey porpey orppey roppey propey rpopey oprpey porpey orppey roppey propey rpopey pproey pproey prpoey rppoey prpoey rppoey operpy poerpy oeprpy eoprpy peorpy eporpy oprepy porepy orpepy ropepy proepy rpoepy oerppy eorppy oreppy roeppy eroppy reoppy peropy epropy preopy rpeopy erpopy repopy operpy poerpy oeprpy eoprpy peorpy eporpy oprepy porepy orpepy ropepy proepy rpoepy oerppy eorppy oreppy roeppy eroppy reoppy peropy epropy preopy rpeopy erpopy repopy pperoy pperoy peproy epproy peproy epproy ppreoy ppreoy prpeoy rppeoy prpeoy rppeoy perpoy eprpoy prepoy rpepoy erppoy reppoy perpoy eprpoy prepoy rpepoy erppoy reppoy
Note: these 'words' (valid or invalid) are all the permutations of the word yopper. These words are obtained by scrambling the letters in yopper.