Brent tells Lacey that he's "in the mood for an amuse-gueule." "Amuse-gueule" is a French culinary term for an appetizer, not ordered from a menu but presented to patrons by the chef as a way of highlighting their cuisine.
Amuse-guelue and amuse-bouche both translate as 'mouth amuser' and both refer to appetizers. While the formal usage specifies an item not selected by the diner but chosen by the chef, common usage can apply to items listed on the menu. Amuse-bouche is generally deemed a pretentious term.