The word perforating 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
Seven Letter Word Alert: (60 words)
airport, angrier, earring, egotrip, engraft, fainter, fearing, fireant, firepan, firepot, forager, foreign, frigate, fringer, grafter, grainer, granite, granter, groaner, ingraft, ingrate, ironage, operant, oranger, orating, ornater, otarine, painter, parting, partner, pertain, petifog, pointer, portage, porting, praetor, prating, printer, profane, pronate, prorate, protean, protein, rafting, rangier, reaping, rearing, refrain, regraft, regrant, repaint, repoint, reprint, retrain, roaring, tangier, tarring, tearing, terrain, trainer