Both Uses

glutton
in
The Fountainhead
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Then he sat for hours, listening, while Mallory spoke of his work, of the thoughts behind his work, of the thoughts that shaped his life, spoke gluttonously, like a drowning man flung out to shore, getting drunk on huge, clean snatches of air.†
Chpt 2.11 *

gluttonously = in the manner of someone who consumes more than they should -- especially eating and drinking too much
Then she stood with him, the mob becoming a heavy silence and a gluttonous stare behind him, and they faced the judge together.†
Chpt 3.7

gluttonous = describing someone who consumes more than they should -- especially eating and drinking too much

Definitions:

(1) (glutton)
someone who consumes more than they should -- especially eating and drinking too much

The expression: "a glutton for punishment" usually refers to someone who persists in some activity despite negative consequences, but it can also be used to stress that someone loves something as in "a glutton for sunshine".
(2) (meaning too rare to warrant focus)
Gluttony is an instance or a habit of eating or drinking like a glutton.

Much more rarely, glutton can reference a kind of wolverine in northern Eurasia.