daffy adffy dfafy fdafy afdfy fadfy daffy adffy dfafy fdafy afdfy fadfy dffay fdfay dffay fdfay ffday ffday affdy fafdy affdy fafdy ffady ffady dafyf adfyf dfayf fdayf afdyf fadyf dayff adyff dyaff ydaff aydff yadff dfyaf fdyaf dyfaf ydfaf fydaf yfdaf afydf faydf ayfdf yafdf fyadf yfadf dafyf adfyf dfayf fdayf afdyf fadyf dayff adyff dyaff ydaff aydff yadff dfyaf fdyaf dyfaf ydfaf fydaf yfdaf afydf faydf ayfdf yafdf fyadf yfadf dffya fdfya dffya fdfya ffdya ffdya dfyfa fdyfa dyffa ydffa fydfa yfdfa dfyfa fdyfa dyffa ydffa fydfa yfdfa ffyda ffyda fyfda yffda fyfda yffda affyd fafyd affyd fafyd ffayd ffayd afyfd fayfd ayffd yaffd fyafd yfafd afyfd fayfd ayffd yaffd fyafd yfafd ffyad ffyad fyfad yffad fyfad yffad
Note: these 'words' (valid or invalid) are all the permutations of the word daffy. These words are obtained by scrambling the letters in daffy.