gawk agwk gwak wgak awgk wagk gakw agkw gkaw kgaw akgw kagw gwka wgka gkwa kgwa wkga kwga awkg wakg akwg kawg wkag kwag
Note: these 'words' (valid or invalid) are all the permutations of the word gawk. These words are obtained by scrambling the letters in gawk.