Big-Lipped Alligator Moment: The entire skit "Pardon Me". Sarah (speaking with a man's voice in deep bass) even says at the end she can't finish because it's "too weird." And for Hardly Working that's saying something.
Broken Base: Fans of the more classic lineup c. 20082013 and fans of the cast from 20142020 essentially comprise two separate fanbases.
Ricky: If you're going to [verb] two [noun]s, just [verb] one. If you're going to [verb] two [noun]s, just [verb] one.
Don't be like Pat Cassels!
Seriously. Don't be like Pat.
There is only despair down at Fraggle Rock!
Nightmare Fuel: The computer singing "The Big Butt Song to End All Big Butt Songs" cranks up the scale of the butt to a Cosmic Horror Story while demonstrating an increasingly disturbing attitude towards "skinny bitches".
Beef Gurewitch, with plenty of Nausea Fuel for good measure.
Sarah: We are not falling for this again. We are not eating that abomination!
Paranoia Fuel: In "High School Dance" Sarah time-travels to the scene of several of her happiest high school memories only to find out that she was universally considered a pathetic loser; her first kiss was a dare from the guy's friends, she only got the lead in the spring musical because no one had the heart to correct a typo in the casting announcement, and everyone mimicked her dance moves out of pity. The ending gag reveals that this is still going on, with the adult Dan reassuring the adult Sarah with a hug and accepting money from their coworkers behind her back (to the exasperation of a time-traveling older Sarah).
They Changed It, Now It Sucks!: Sarah's reaction to the gang's birthday song made for her in "Sarah's Birthday" is that she bursts into tears. Everyone else apparently loves it: meaning her standing out is so amusing.
Critical Dissonance: Critics slammed the film hard (Roger Ebert in particular gave it a zero-star review and said it may well have been the absolute worst comedy he'd ever reviewed until that point), but in addition to having already done well in Europe it would gain itself a following in the U.S. after its VHS release.
Germans Love David Hasselhoff: Par for the course with Lewis's movies, it got a much better reception in mainland Europe, though its U.S. release wasn't helped by the fact that the distributor chopped out twenty minutes of footage and swapped around the order of several scenes, exacerbating the continuity problems the film already had.
Apparently, Vina escaped from the planet Talos IV and got married to Harry Mudd. Normally this trope wouldn't apply since Susan Oliver and Roger C. Carmel had appeared in Star Trek: The Original Series 16 and 14 years respectively before this film's release, but the show's original pilot episode (which Oliver appeared in) remained stuck in Paramount's vaults until later in the 1980s.
Susan Oliver had played Jerry Lewis' love interest in "The Disorderly Orderly" 16 years earlier and now plays his sister.
It's the Same, Now It Sucks!: By far the biggest criticism of the film was that very little had changed about Lewis's comedy style since his heyday. Even those fans who like the film generally admit that it's nowhere near as good as his earlier work.