The word gluttonise 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: 15
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (38 words)
egotist, elogist, eloigns, elusion, eluting, elution, glisten, glottis, gluiest, glutens, glutton, igneous, legions, letting, lingoes, lionets, longest, lounges, lousing, luniest, lusting, lutites, nutlets, ousting, outings, outlets, outlies, outline, setting, singlet, testing, teutons, tingles, toilets, tongues, touting, ugliest, utensil