* AwesomeMusic: [[Music/FleetwoodMac Lindsey Buckingham's]] "Holiday Road".
* DudeNotFunny: Dragging a dog to death just is not funny. The cop who pulled Clark over for it was especially unamused.
** It ''was'' a horrible dog, at least.
** Well it more the circumstances of it that was funny. Clark was kinda distracted while packing up everything. And you gotta admit the scene with the cop was hilarious.
** At least they only showed the dog's collar. In the short story that the movie was based there is a very graphic description of Dinkie's remains, and he wasn't even a mean dog! Also there's a part where Clark [[spoiler:purposely kills another dog with a revolver.]]
** Averted at one part; it was originally planned for Aunt Edna to still be alive when she was on top of the Griswolds' car; it was later changed when it was considered too mean-spirited.
*** Who's to say she wasn't alive by the time Normy came back?
* EarWorm: Lindsey Buckingham's "Holiday Road", which serves as the movie's theme song.
* FunnyAneurysmMoment: In ''European Vacation'', Audrey appeared in an ImagineSpot where she ate all kinds of desserts until she was full, BalloonBelly and all. This was PlayedForLaughs. In RealLife, actress Dana Hill (who had been a diabetic since her early teens) died at age 32 of a stroke brought on by her condition.
* NauseaFuel: The family at one point stop off at a picnic area to have some lunch. As they're eating the sandwiches they notice they're soggy, And then it hit them that Aunt Edna's dog urinated on the food. The family is understandably disgusted but Edna just shrugs and continues eating. Ugh.
* MostAnnoyingSound: Pig in a fuckin' poke.
* RetroactiveRecognition: A pre-''Seinfeld'' Julia Louis Dreyfuss has a small role in ''Christmas Vacation'', as one of Clark's snooty neighbors. Doris Roberts also has a supporting role as Clark's mother-in-law.
* WhatAnIdiot: The whole mess of a vacation would have been avoided had Clark (or even the far more rational Ellen) made a simple phone call to Wally World to confirm it was open for the season; they would have learned it was "closed for repairs." (Then again, phone call equals no movie and no fun for us, the viewer.)