gumbo ugmbo gmubo mgubo umgbo mugbo gubmo ugbmo gbumo bgumo ubgmo bugmo gmbuo mgbuo gbmuo bgmuo mbguo bmguo umbgo mubgo ubmgo bumgo mbugo bmugo gumob ugmob gmuob mguob umgob mugob guomb ugomb goumb ogumb uogmb ougmb gmoub mgoub gomub ogmub mogub omgub umogb muogb uomgb oumgb mougb omugb gubom ugbom gbuom bguom ubgom bugom guobm ugobm goubm ogubm uogbm ougbm gboum bgoum gobum ogbum bogum obgum ubogm buogm uobgm oubgm bougm obugm gmbou mgbou gbmou bgmou mbgou bmgou gmobu mgobu gombu ogmbu mogbu omgbu gbomu bgomu gobmu ogbmu bogmu obgmu mbogu bmogu mobgu ombgu bomgu obmgu umbog mubog ubmog bumog mbuog bmuog umobg muobg uombg oumbg moubg omubg ubomg buomg uobmg oubmg boumg obumg mboug bmoug mobug ombug bomug obmug
Note: these 'words' (valid or invalid) are all the permutations of the word gumbo. These words are obtained by scrambling the letters in gumbo.