Connoisseur who eats and drinks excessively, similar to a glutton but with more self-control. They just really like getting their taste buds rubbed.
(Note: Gormand is an acceptable variation, preferred by anyone trying to avoid an aristocratic tone.)
“I stopped inviting Pumblechook to dinner because, well, he’s a gormand and watching him chase his tenderloin with heaped spoons of creamed corn is just, disgusting.”
(Note: Collins and Merriam-Webster note that “glutton” is an obsolete definition of gormand, which is supposed to have less of a negative connotation. Oxford and American Heritage only mention that a gormand “eats too much”. So while probably not gluttonous, a gormand is going to eat until they’re stuffed, and then maybe smoke a clove cigarette before ordering the tiramisu.)
“You wouldn’t want to share a table or a bed with him. He makes love the same way he gormandizes.”
Gormandize can also be used as an intransitive verb, so, yes, you can gormandize the shit out of your cheesy meatloaf.