The word boomeranged 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: 21
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (36 words)
abdomen, ambered, amender, angered, bargoon, bedroom, bondage, boredom, bradoon, broaden, broomed, deboner, derange, doorman, doormen, dragoon, embargo, embread, endgame, enraged, enrobed, gadroon, geodome, germane, grenade, groaned, groomed, meander, moorage, onboard, oregano, reamend, rebadge, rebegan, renamed, roadmen