It’s now a bona fide holiday classic that has one hilariously cringe-filled scene after another. There’s the cat getting electrocuted under the Christmas tree, the over-the-top outdoor decorations, Uncle Eddie’s dog Snots chasing a squirrel through the house on Christmas Eve, Aunt Bethany reciting the Pledge of Allegiance instead of saying grace. But in 1983, it was hard to imagine a comedy that could have topped National Lampoon’s Vacation. It’s classic Chevy Chase as he plays the bumbling Clark Griswold who is determined to get his family to Walley World even if it means driving with a dead Aunt Edna on the roof of the car. Yet somehow, Christmas Vacation tops all the Vacation movies (European and Vegas Vacation shouldn’t even be mentioned here) mainly because of Chase’s deadpan one-liners (“If I woke up this morning with my head sewn to the carpet, I wouldn’t be more surprised than I am right now”), Aunt Bethany’s senility (“Oh dear, did I break wind?”) and Uncle Eddie’s obliviousness (“S___ter was full”).