YMMV / The 40-Year-Old Virgin

  • Big-Lipped Alligator Moment: The end sequence, a performance of the Hair number "Age of Aquarius/Let the Sunshine In" featuring the entire cast. This happens immediately after Andy and Trish's consummation of their marriage.
  • Hollywood Homely: Cal. Granted few people would consider Seth Rogen their dream man but he is average-looking at worst and certainly not "ugly as fuck" by traditional standards.
  • Memetic Mutation:
    • "Bags of sand" (the line that gives away Andy is a virgin) to refer to breasts.
    • You know how I know you're gay? You added this trope.
      • On many internet message boards, "You know how I know you're gay?" has become a typical comeback to somebody pointing out minor flaws on an attractive woman.
    • "Putting the pussy on a pedestal."
  • Retroactive Recognition: The movie basically plays as a who's who of future comedic name actors.
  • One-Scene Wonder: Jonah Hill as the guy who wants to buy the goldfish platform boots so he can wear them. He reappears again during the ending sequence above.
  • "Seinfeld" Is Unfunny: While plenty of comedy movies and shows had had lots of improv before, this was the first mainstream comedy in which all of the dialogue was ad-libbed or retroscripted for deliberately awkward comedic effect and was seen as a unique new way to do feature-film comedy in 2005. Now, it's impossible to find any live action comedy whatsoever that isn't created this way and by the middle of The New '10s, it's become seen as infuriatingly lazy.
  • Some Anvils Need to Be Dropped: There's nothing really wrong with being a virgin. Sex doesn't have to be integral to a healthy and meaningful relationship at any given point, nor be an indicator of a person's maturity.
  • Strawman Has a Point: When Jay's girlfriend tells Andy off for making objectifying comments about women on his speed dating card, (which is actually Jay's) Andy makes himself out to be a creep to cover for him. But he actually makes a solid point that she really has no business coming down to his workplace and chewing him out in front of all of his coworkers about this, particularly since they've never even met before. Made even worse when Jay's girlfriend essentially commands him to no not hang around Andy anymore, apparently displaying she's perfectly okay with telling her grown boyfriend who he is and isn't allowed to associate with.
  • The Woobie: Andy. David is arguable as well because of his love/hate relationship with his ex-girlfriend.

Alternative Title(s): The 40 Year Old Virgin