[[caption-width-right:350: A RecursiveTranslation [[Film/TheDarkKnight said it first]].]]
->''"Everything is funnier in retrospect, funnier and prettier and cooler. You can laugh at anything from far enough away."''
FunnyAneurysmMoment is when events, either external or within a series, turn a joke into something disturbing, upsetting, or at the very least ''really'' uncomfortable. HarsherInHindsight is when a tragic and serious event is even worse later.
This is the opposite. It's when a later event, such as a current event or something that happened in the series, contrives to make something ''funnier'' than it originally was. This is what your literature teacher would call "[[LifeImitatesArt Life imitating Art]]". There's a decent list in this [[http://www.collegehumor.com/article/3351727/seven-jokes-that-came-true College Humor]] feature and another one in this [[http://www.cracked.com/article_19146_8-absurd-jokes-that-predicted-real-life-events.html Cracked.com]] feature.
Note this is ''not'' merely something that seemingly predicts something else. For example, black US presidents in fictions are not this trope. A black US president in fiction who has an EmbarrassingMiddleName would be.
Also note that some examples that might not seem funny to one, might seem funny to another. It depends on attitudes towards BlackComedy and GallowsHumor.
Additionally, "hilarious" doesn't just mean "BLAH-HAH-HAH! gut-busting," either. If you go by the word's [[YouKeepUsingThatWord original definition]], it can mean "amusing" or "charming" as well. So ''any'' belated lighthearted coincidence would fit under this trope.
Almost all examples of HaveAGayOldTime are an example of this trope. Some examples of ActorAllusion and/or RoleAssociation are.
Compare FridgeBrilliance, HeartwarmingInHindsight.
Contrast FunnyAneurysmMoment (when something that was once amusing or awesome is now tinged with tragedy thanks to a RealLife or in-story tragedy), DudeNotFunny (when something is considered in bad taste to mock or even mention, no matter what the circumstance), HilariousInFlashback (where a glimpse of the characters' past contrasts amusingly with their established personalities and situation), and HarsherInHindsight (when something dramatic or depressing is now worse due to a RealLife or in-story tragedy).