popgun oppgun ppogun ppogun oppgun popgun pogpun opgpun pgopun gpopun ogppun goppun ppgoun ppgoun pgpoun gppoun pgpoun gppoun opgpun pogpun ogppun goppun pgopun gpopun popugn oppugn ppougn ppougn oppugn popugn poupgn opupgn puopgn upopgn ouppgn uoppgn ppuogn ppuogn pupogn uppogn pupogn uppogn opupgn poupgn ouppgn uoppgn puopgn upopgn pogupn opgupn pgoupn gpoupn ogpupn gopupn pougpn opugpn puogpn upogpn oupgpn uopgpn pguopn gpuopn pugopn upgopn gupopn ugpopn oguppn gouppn ougppn uogppn guoppn ugoppn ppguon ppguon pgpuon gppuon pgpuon gppuon ppugon ppugon pupgon uppgon pupgon uppgon pgupon gpupon pugpon upgpon guppon ugppon pgupon gpupon pugpon upgpon guppon ugppon opgupn pogupn ogpupn gopupn pgoupn gpoupn opugpn pougpn oupgpn uopgpn puogpn upogpn oguppn gouppn ougppn uogppn guoppn ugoppn pguopn gpuopn pugopn upgopn gupopn ugpopn popgnu oppgnu ppognu ppognu oppgnu popgnu pogpnu opgpnu pgopnu gpopnu ogppnu goppnu ppgonu ppgonu pgponu gpponu pgponu gpponu opgpnu pogpnu ogppnu goppnu pgopnu gpopnu popngu oppngu ppongu ppongu oppngu popngu ponpgu opnpgu pnopgu npopgu onppgu noppgu ppnogu ppnogu pnpogu nppogu pnpogu nppogu opnpgu ponpgu onppgu noppgu pnopgu npopgu pognpu opgnpu pgonpu gponpu ogpnpu gopnpu pongpu opngpu pnogpu npogpu onpgpu nopgpu pgnopu gpnopu pngopu npgopu gnpopu ngpopu ognppu gonppu ongppu nogppu gnoppu ngoppu ppgnou ppgnou pgpnou gppnou pgpnou gppnou ppngou ppngou pnpgou nppgou pnpgou nppgou pgnpou gpnpou pngpou npgpou gnppou ngppou pgnpou gpnpou pngpou npgpou gnppou ngppou opgnpu pognpu ogpnpu gopnpu pgonpu gponpu opngpu pongpu onpgpu nopgpu pnogpu npogpu ognppu gonppu ongppu nogppu gnoppu ngoppu pgnopu gpnopu pngopu npgopu gnpopu ngpopu popung oppung ppoung ppoung oppung popung poupng opupng puopng upopng ouppng uoppng ppuong ppuong pupong uppong pupong uppong opupng poupng ouppng uoppng puopng upopng popnug oppnug pponug pponug oppnug popnug ponpug opnpug pnopug npopug onppug noppug ppnoug ppnoug pnpoug nppoug pnpoug nppoug opnpug ponpug onppug noppug pnopug npopug pounpg opunpg puonpg uponpg oupnpg uopnpg ponupg opnupg pnoupg npoupg onpupg nopupg punopg upnopg pnuopg npuopg unpopg nupopg ounppg uonppg onuppg nouppg unoppg nuoppg ppunog ppunog pupnog uppnog pupnog uppnog ppnuog ppnuog pnpuog nppuog pnpuog nppuog punpog upnpog pnupog npupog unppog nuppog punpog upnpog pnupog npupog unppog nuppog opunpg pounpg oupnpg uopnpg puonpg uponpg opnupg ponupg onpupg nopupg pnoupg npoupg ounppg uonppg onuppg nouppg unoppg nuoppg punopg upnopg pnuopg npuopg unpopg nupopg pogunp opgunp pgounp gpounp ogpunp gopunp pougnp opugnp puognp upognp oupgnp uopgnp pguonp gpuonp pugonp upgonp guponp ugponp ogupnp goupnp ougpnp uogpnp guopnp ugopnp pognup opgnup pgonup gponup ogpnup gopnup pongup opngup pnogup npogup onpgup nopgup pgnoup gpnoup pngoup npgoup gnpoup ngpoup ognpup gonpup ongpup nogpup gnopup ngopup poungp opungp puongp upongp oupngp uopngp ponugp opnugp pnougp npougp onpugp nopugp punogp upnogp pnuogp npuogp unpogp nupogp ounpgp uonpgp onupgp noupgp unopgp nuopgp pgunop gpunop pugnop upgnop gupnop ugpnop pgnuop gpnuop pnguop npguop gnpuop ngpuop pungop upngop pnugop npugop unpgop nupgop gunpop ugnpop gnupop ngupop ungpop nugpop ogunpp gounpp ougnpp uognpp guonpp ugonpp ognupp gonupp ongupp nogupp gnoupp ngoupp oungpp uongpp onugpp nougpp unogpp nuogpp gunopp ugnopp gnuopp nguopp ungopp nugopp ppguno ppguno pgpuno gppuno pgpuno gppuno ppugno ppugno pupgno uppgno pupgno uppgno pgupno gpupno pugpno upgpno guppno ugppno pgupno gpupno pugpno upgpno guppno ugppno ppgnuo ppgnuo pgpnuo gppnuo pgpnuo gppnuo ppnguo ppnguo pnpguo nppguo pnpguo nppguo pgnpuo gpnpuo pngpuo npgpuo gnppuo ngppuo pgnpuo gpnpuo pngpuo npgpuo gnppuo ngppuo ppungo ppungo pupngo uppngo pupngo uppngo ppnugo ppnugo pnpugo nppugo pnpugo nppugo punpgo upnpgo pnupgo npupgo unppgo nuppgo punpgo upnpgo pnupgo npupgo unppgo nuppgo pgunpo gpunpo pugnpo upgnpo gupnpo ugpnpo pgnupo gpnupo pngupo npgupo gnpupo ngpupo pungpo upngpo pnugpo npugpo unpgpo nupgpo gunppo ugnppo gnuppo nguppo ungppo nugppo pgunpo gpunpo pugnpo upgnpo gupnpo ugpnpo pgnupo gpnupo pngupo npgupo gnpupo ngpupo pungpo upngpo pnugpo npugpo unpgpo nupgpo gunppo ugnppo gnuppo nguppo ungppo nugppo opgunp pogunp ogpunp gopunp pgounp gpounp opugnp pougnp oupgnp uopgnp puognp upognp ogupnp goupnp ougpnp uogpnp guopnp ugopnp pguonp gpuonp pugonp upgonp guponp ugponp opgnup pognup ogpnup gopnup pgonup gponup opngup pongup onpgup nopgup pnogup npogup ognpup gonpup ongpup nogpup gnopup ngopup pgnoup gpnoup pngoup npgoup gnpoup ngpoup opungp poungp oupngp uopngp puongp upongp opnugp ponugp onpugp nopugp pnougp npougp ounpgp uonpgp onupgp noupgp unopgp nuopgp punogp upnogp pnuogp npuogp unpogp nupogp ogunpp gounpp ougnpp uognpp guonpp ugonpp ognupp gonupp ongupp nogupp gnoupp ngoupp oungpp uongpp onugpp nougpp unogpp nuogpp gunopp ugnopp gnuopp nguopp ungopp nugopp pgunop gpunop pugnop upgnop gupnop ugpnop pgnuop gpnuop pnguop npguop gnpuop ngpuop pungop upngop pnugop npugop unpgop nupgop gunpop ugnpop gnupop ngupop ungpop nugpop
Note: these 'words' (valid or invalid) are all the permutations of the word popgun. These words are obtained by scrambling the letters in popgun.