The word boomeranging 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: 24
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (43 words)
baggier, banging, barging, bargoon, beaming, bearing, begonia, boggier, bonnier, boomier, booming, bromine, earning, embargo, gamboge, garbing, gearing, ionogen, ionomer, ironage, ironman, mangier, meaning, merging, moaning, mooning, moorage, mooring, moraine, morning, nearing, nonamer, nongame, ongoing, oregano, ranging, reaming, ringman, ringmen, roaming, roaning, romaine, rooming