The word sandbaggers 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: 20
Highest Scoring Words With Friends™ Play In The Letters sandbaggers
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Seven Letter Word Alert: (33 words)
abasers, abrades, abrased, abrases, agendas, aggrade, aggress, badgers, badness, bandage, bangers, beggars, bragged, brassed, daggers, dangers, ganders, garaged, garages, garbage, gardens, gasbags, grassed, naggers, ragbags, resands, saggers, sandbag, sandbar, sanders, seabags, snagged, snagger