The word hammertoes is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 18
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (24 words)
ammeter, earshot, emoters, hammers, hamster, heaters, heteros, maestro, marmots, metamer, meteors, mothers, reheats, rehomes, remates, remotes, reteams, roseate, shammer, smother, stammer, steamer, theorem, thermos