The word gluttonising 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™ Plays In The Letters
Seven Letter Word Alert: (37 words)
glottis, glutton, gosling, gusting, gutting, insulin, intuits, inulins, lignins, linings, listing, longing, lousing, lunging, lusting, nonsuit, nutting, oligist, ousting, outings, signing, silting, singing, sitting, soiling, stoning, suiting, tilings, tilting, tinging, tinting, toiling, touting, tuition, tunings, uniting, unsling