Yes, glut is a Scrabble word!
...and is worth 5 points in Scrabble, and 8 points in Words with Friends
glut
Verb
1. Overeat or eat immodestly; make a pig of oneself
2. Supply with an excess of
Noun
1. The quality of being so overabundant that prices fall
What Scrabble words can I make with the letters in glut?
3 Letter Words
2 Letter Words