The word sodbuster 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: 14
Highest Scoring Words With Friends™ Play In The Letters sodbuster
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Seven Letter Word Alert: (24 words)
bedusts, besorts, bestuds, busters, debtors, detours, doubter, dousers, dusters, estrous, obtrude, obtuser, oestrus, ousters, outbred, redoubt, rosebud, sorbets, sourest, strobed, strobes, subsort, toruses, trussed