gadfly agdfly gdafly dgafly adgfly dagfly gafdly agfdly gfadly fgadly afgdly fagdly gdfaly dgfaly gfdaly fgdaly dfgaly fdgaly adfgly dafgly afdgly fadgly dfagly fdagly gadlfy agdlfy gdalfy dgalfy adglfy daglfy galdfy agldfy gladfy lgadfy algdfy lagdfy gdlafy dglafy gldafy lgdafy dlgafy ldgafy adlgfy dalgfy aldgfy ladgfy dlagfy ldagfy gafldy agfldy gfaldy fgaldy afgldy fagldy galfdy aglfdy glafdy lgafdy algfdy lagfdy gflady fglady glfady lgfady flgady lfgady aflgdy falgdy alfgdy lafgdy flagdy lfagdy gdflay dgflay gfdlay fgdlay dfglay fdglay gdlfay dglfay gldfay lgdfay dlgfay ldgfay gflday fglday glfday lgfday flgday lfgday dflgay fdlgay dlfgay ldfgay fldgay lfdgay adflgy daflgy afdlgy fadlgy dfalgy fdalgy adlfgy dalfgy aldfgy ladfgy dlafgy ldafgy afldgy faldgy alfdgy lafdgy fladgy lfadgy dflagy fdlagy dlfagy ldfagy fldagy lfdagy gadfyl agdfyl gdafyl dgafyl adgfyl dagfyl gafdyl agfdyl gfadyl fgadyl afgdyl fagdyl gdfayl dgfayl gfdayl fgdayl dfgayl fdgayl adfgyl dafgyl afdgyl fadgyl dfagyl fdagyl gadyfl agdyfl gdayfl dgayfl adgyfl dagyfl gaydfl agydfl gyadfl ygadfl aygdfl yagdfl gdyafl dgyafl gydafl ygdafl dygafl ydgafl adygfl daygfl aydgfl yadgfl dyagfl ydagfl gafydl agfydl gfaydl fgaydl afgydl fagydl gayfdl agyfdl gyafdl ygafdl aygfdl yagfdl gfyadl fgyadl gyfadl ygfadl fygadl yfgadl afygdl faygdl ayfgdl yafgdl fyagdl yfagdl gdfyal dgfyal gfdyal fgdyal dfgyal fdgyal gdyfal dgyfal gydfal ygdfal dygfal ydgfal gfydal fgydal gyfdal ygfdal fygdal yfgdal dfygal fdygal dyfgal ydfgal fydgal yfdgal adfygl dafygl afdygl fadygl dfaygl fdaygl adyfgl dayfgl aydfgl yadfgl dyafgl ydafgl afydgl faydgl ayfdgl yafdgl fyadgl yfadgl dfyagl fdyagl dyfagl ydfagl fydagl yfdagl gadlyf agdlyf gdalyf dgalyf adglyf daglyf galdyf agldyf gladyf lgadyf algdyf lagdyf gdlayf dglayf gldayf lgdayf dlgayf ldgayf adlgyf dalgyf aldgyf ladgyf dlagyf ldagyf gadylf agdylf gdaylf dgaylf adgylf dagylf gaydlf agydlf gyadlf ygadlf aygdlf yagdlf gdyalf dgyalf gydalf ygdalf dygalf ydgalf adyglf dayglf aydglf yadglf dyaglf ydaglf galydf aglydf glaydf lgaydf algydf lagydf gayldf agyldf gyaldf ygaldf aygldf yagldf glyadf lgyadf gyladf ygladf lygadf ylgadf alygdf laygdf aylgdf yalgdf lyagdf ylagdf gdlyaf dglyaf gldyaf lgdyaf dlgyaf ldgyaf gdylaf dgylaf gydlaf ygdlaf dyglaf ydglaf glydaf lgydaf gyldaf ygldaf lygdaf ylgdaf dlygaf ldygaf dylgaf ydlgaf lydgaf yldgaf adlygf dalygf aldygf ladygf dlaygf ldaygf adylgf daylgf aydlgf yadlgf dyalgf ydalgf alydgf laydgf ayldgf yaldgf lyadgf yladgf dlyagf ldyagf dylagf ydlagf lydagf yldagf gaflyd agflyd gfalyd fgalyd afglyd faglyd galfyd aglfyd glafyd lgafyd algfyd lagfyd gflayd fglayd glfayd lgfayd flgayd lfgayd aflgyd falgyd alfgyd lafgyd flagyd lfagyd gafyld agfyld gfayld fgayld afgyld fagyld gayfld agyfld gyafld ygafld aygfld yagfld gfyald fgyald gyfald ygfald fygald yfgald afygld faygld ayfgld yafgld fyagld yfagld galyfd aglyfd glayfd lgayfd algyfd lagyfd gaylfd agylfd gyalfd ygalfd ayglfd yaglfd glyafd lgyafd gylafd yglafd lygafd ylgafd alygfd laygfd aylgfd yalgfd lyagfd ylagfd gflyad fglyad glfyad lgfyad flgyad lfgyad gfylad fgylad gyflad ygflad fyglad yfglad glyfad lgyfad gylfad yglfad lygfad ylgfad flygad lfygad fylgad yflgad lyfgad ylfgad aflygd falygd alfygd lafygd flaygd lfaygd afylgd faylgd ayflgd yaflgd fyalgd yfalgd alyfgd layfgd aylfgd yalfgd lyafgd ylafgd flyagd lfyagd fylagd yflagd lyfagd ylfagd gdflya dgflya gfdlya fgdlya dfglya fdglya gdlfya dglfya gldfya lgdfya dlgfya ldgfya gfldya fgldya glfdya lgfdya flgdya lfgdya dflgya fdlgya dlfgya ldfgya fldgya lfdgya gdfyla dgfyla gfdyla fgdyla dfgyla fdgyla gdyfla dgyfla gydfla ygdfla dygfla ydgfla gfydla fgydla gyfdla ygfdla fygdla yfgdla dfygla fdygla dyfgla ydfgla fydgla yfdgla gdlyfa dglyfa gldyfa lgdyfa dlgyfa ldgyfa gdylfa dgylfa gydlfa ygdlfa dyglfa ydglfa glydfa lgydfa gyldfa ygldfa lygdfa ylgdfa dlygfa ldygfa dylgfa ydlgfa lydgfa yldgfa gflyda fglyda glfyda lgfyda flgyda lfgyda gfylda fgylda gyflda ygflda fyglda yfglda glyfda lgyfda gylfda yglfda lygfda ylgfda flygda lfygda fylgda yflgda lyfgda ylfgda dflyga fdlyga dlfyga ldfyga fldyga lfdyga dfylga fdylga dyflga ydflga fydlga yfdlga dlyfga ldyfga dylfga ydlfga lydfga yldfga flydga lfydga fyldga yfldga lyfdga ylfdga adflyg daflyg afdlyg fadlyg dfalyg fdalyg adlfyg dalfyg aldfyg ladfyg dlafyg ldafyg afldyg faldyg alfdyg lafdyg fladyg lfadyg dflayg fdlayg dlfayg ldfayg fldayg lfdayg adfylg dafylg afdylg fadylg dfaylg fdaylg adyflg dayflg aydflg yadflg dyaflg ydaflg afydlg faydlg ayfdlg yafdlg fyadlg yfadlg dfyalg fdyalg dyfalg ydfalg fydalg yfdalg adlyfg dalyfg aldyfg ladyfg dlayfg ldayfg adylfg daylfg aydlfg yadlfg dyalfg ydalfg alydfg laydfg ayldfg yaldfg lyadfg yladfg dlyafg ldyafg dylafg ydlafg lydafg yldafg aflydg falydg alfydg lafydg flaydg lfaydg afyldg fayldg ayfldg yafldg fyaldg yfaldg alyfdg layfdg aylfdg yalfdg lyafdg ylafdg flyadg lfyadg fyladg yfladg lyfadg ylfadg dflyag fdlyag dlfyag ldfyag fldyag lfdyag dfylag fdylag dyflag ydflag fydlag yfdlag dlyfag ldyfag dylfag ydlfag lydfag yldfag flydag lfydag fyldag yfldag lyfdag ylfdag
Note: these 'words' (valid or invalid) are all the permutations of the word gadfly. These words are obtained by scrambling the letters in gadfly.