hangup ahngup hnagup nhagup anhgup nahgup hagnup ahgnup hganup ghanup aghnup gahnup hngaup nhgaup hgnaup ghnaup nghaup gnhaup anghup naghup agnhup ganhup ngahup gnahup hanugp ahnugp hnaugp nhaugp anhugp nahugp haungp ahungp huangp uhangp auhngp uahngp hnuagp nhuagp hunagp uhnagp nuhagp unhagp anuhgp nauhgp aunhgp uanhgp nuahgp unahgp hagunp ahgunp hgaunp ghaunp aghunp gahunp haugnp ahugnp huagnp uhagnp auhgnp uahgnp hguanp ghuanp huganp uhganp guhanp ughanp aguhnp gauhnp aughnp uaghnp guahnp ugahnp hnguap nhguap hgnuap ghnuap nghuap gnhuap hnugap nhugap hungap uhngap nuhgap unhgap hgunap ghunap hugnap uhgnap guhnap ughnap nguhap gnuhap nughap unghap gunhap ugnhap anguhp naguhp agnuhp ganuhp ngauhp gnauhp anughp naughp aunghp uanghp nuaghp unaghp agunhp gaunhp augnhp uagnhp guanhp uganhp nguahp gnuahp nugahp ungahp gunahp ugnahp hangpu ahngpu hnagpu nhagpu anhgpu nahgpu hagnpu ahgnpu hganpu ghanpu aghnpu gahnpu hngapu nhgapu hgnapu ghnapu nghapu gnhapu anghpu naghpu agnhpu ganhpu ngahpu gnahpu hanpgu ahnpgu hnapgu nhapgu anhpgu nahpgu hapngu ahpngu hpangu phangu aphngu pahngu hnpagu nhpagu hpnagu phnagu nphagu pnhagu anphgu naphgu apnhgu panhgu npahgu pnahgu hagpnu ahgpnu hgapnu ghapnu aghpnu gahpnu hapgnu ahpgnu hpagnu phagnu aphgnu pahgnu hgpanu ghpanu hpganu phganu gphanu pghanu agphnu gaphnu apghnu paghnu gpahnu pgahnu hngpau nhgpau hgnpau ghnpau nghpau gnhpau hnpgau nhpgau hpngau phngau nphgau pnhgau hgpnau ghpnau hpgnau phgnau gphnau pghnau ngphau gnphau npghau pnghau gpnhau pgnhau angphu nagphu agnphu ganphu ngaphu gnaphu anpghu napghu apnghu panghu npaghu pnaghu agpnhu gapnhu apgnhu pagnhu gpanhu pganhu ngpahu gnpahu npgahu pngahu gpnahu pgnahu hanupg ahnupg hnaupg nhaupg anhupg nahupg haunpg ahunpg huanpg uhanpg auhnpg uahnpg hnuapg nhuapg hunapg uhnapg nuhapg unhapg anuhpg nauhpg aunhpg uanhpg nuahpg unahpg hanpug ahnpug hnapug nhapug anhpug nahpug hapnug ahpnug hpanug phanug aphnug pahnug hnpaug nhpaug hpnaug phnaug nphaug pnhaug anphug naphug apnhug panhug npahug pnahug haupng ahupng huapng uhapng auhpng uahpng hapung ahpung hpaung phaung aphung pahung hupang uhpang hpuang phuang uphang puhang auphng uaphng apuhng pauhng upahng puahng hnupag nhupag hunpag uhnpag nuhpag unhpag hnpuag nhpuag hpnuag phnuag nphuag pnhuag hupnag uhpnag hpunag phunag uphnag puhnag nuphag unphag npuhag pnuhag upnhag punhag anuphg nauphg aunphg uanphg nuaphg unaphg anpuhg napuhg apnuhg panuhg npauhg pnauhg aupnhg uapnhg apunhg paunhg upanhg puanhg nupahg unpahg npuahg pnuahg upnahg punahg hagupn ahgupn hgaupn ghaupn aghupn gahupn haugpn ahugpn huagpn uhagpn auhgpn uahgpn hguapn ghuapn hugapn uhgapn guhapn ughapn aguhpn gauhpn aughpn uaghpn guahpn ugahpn hagpun ahgpun hgapun ghapun aghpun gahpun hapgun ahpgun hpagun phagun aphgun pahgun hgpaun ghpaun hpgaun phgaun gphaun pghaun agphun gaphun apghun paghun gpahun pgahun haupgn ahupgn huapgn uhapgn auhpgn uahpgn hapugn ahpugn hpaugn phaugn aphugn pahugn hupagn uhpagn hpuagn phuagn uphagn puhagn auphgn uaphgn apuhgn pauhgn upahgn puahgn hgupan ghupan hugpan uhgpan guhpan ughpan hgpuan ghpuan hpguan phguan gphuan pghuan hupgan uhpgan hpugan phugan uphgan puhgan guphan ugphan gpuhan pguhan upghan pughan aguphn gauphn augphn uagphn guaphn ugaphn agpuhn gapuhn apguhn paguhn gpauhn pgauhn aupghn uapghn apughn paughn upaghn puaghn gupahn ugpahn gpuahn pguahn upgahn pugahn hngupa nhgupa hgnupa ghnupa nghupa gnhupa hnugpa nhugpa hungpa uhngpa nuhgpa unhgpa hgunpa ghunpa hugnpa uhgnpa guhnpa ughnpa nguhpa gnuhpa nughpa unghpa gunhpa ugnhpa hngpua nhgpua hgnpua ghnpua nghpua gnhpua hnpgua nhpgua hpngua phngua nphgua pnhgua hgpnua ghpnua hpgnua phgnua gphnua pghnua ngphua gnphua npghua pnghua gpnhua pgnhua hnupga nhupga hunpga uhnpga nuhpga unhpga hnpuga nhpuga hpnuga phnuga nphuga pnhuga hupnga uhpnga hpunga phunga uphnga puhnga nuphga unphga npuhga pnuhga upnhga punhga hgupna ghupna hugpna uhgpna guhpna ughpna hgpuna ghpuna hpguna phguna gphuna pghuna hupgna uhpgna hpugna phugna uphgna puhgna guphna ugphna gpuhna pguhna upghna pughna ngupha gnupha nugpha ungpha gunpha ugnpha ngpuha gnpuha npguha pnguha gpnuha pgnuha nupgha unpgha npugha pnugha upngha pungha gupnha ugpnha gpunha pgunha upgnha pugnha anguph naguph agnuph ganuph ngauph gnauph anugph naugph aungph uangph nuagph unagph agunph gaunph augnph uagnph guanph uganph nguaph gnuaph nugaph ungaph gunaph ugnaph angpuh nagpuh agnpuh ganpuh ngapuh gnapuh anpguh napguh apnguh panguh npaguh pnaguh agpnuh gapnuh apgnuh pagnuh gpanuh pganuh ngpauh gnpauh npgauh pngauh gpnauh pgnauh anupgh naupgh aunpgh uanpgh nuapgh unapgh anpugh napugh apnugh panugh npaugh pnaugh aupngh uapngh apungh paungh upangh puangh nupagh unpagh npuagh pnuagh upnagh punagh agupnh gaupnh augpnh uagpnh guapnh ugapnh agpunh gapunh apgunh pagunh gpaunh pgaunh aupgnh uapgnh apugnh paugnh upagnh puagnh gupanh ugpanh gpuanh pguanh upganh puganh ngupah gnupah nugpah ungpah gunpah ugnpah ngpuah gnpuah npguah pnguah gpnuah pgnuah nupgah unpgah npugah pnugah upngah pungah gupnah ugpnah gpunah pgunah upgnah pugnah
Note: these 'words' (valid or invalid) are all the permutations of the word hangup. These words are obtained by scrambling the letters in hangup.