Eggnog
Clark Griswold / Cousin Eddie
Clark and Cousin Eddie drink eggnog from moose-head glass mugs, and Clark offers Eddie a sarcastic refill.
“Can I refill your eggnog for you? Get you something to eat? Drive you out to the middle of nowhere, leave you for dead?”
See the full quote on Movie Quotes Database →
Sources: Wikiquote: National Lampoon's Christmas Vacation; Scary Mommy: 'National Lampoon's Christmas Vacation' Glass Moose Mug