Hilarity Ensues 

From the days of newspaper TV Guides that would write two sentence synopses (loglines) of a television show. Sometimes these summaries wouldn't sound comedic on the surface, so "hilarity ensues" was used to ensure the audience understood it was a premise for a comedy.

Tonight on Seinfeld, George decides the best time to have a snack is during sex. Hilarity ensues.

Hilarity Ensues by flobo November 13, 2010

hilarity ensues 

An ending that can be put onto the ends of stories and plans. A convenient phrase to use when your story or plan sounded really dumb. It usually doesn't make much sense.

Me: Ok here's what's gonna happen: I'll go steal her key's and she will spend the whole night trying to find them!
Other People: (stare)
Me: Hilarity ensues.

hilarity ensues by Jake Seifert March 25, 2006

hilarity ensues 

Something funny is upcoming due to a build-up of circumstantial events, or a comedy of errors.

Sometimes involves rape.

You: Fuck! I just shat my pants!
Rape Panda: *Waits for hilarity to ensue*
...
hilarity ensues

hilarity ensues by burgernator August 3, 2009

Disaster Strikes, Hilarity Ensues 

What you say when your friend does something unfathomably stupid, and it bites them in the ass.

After you say this, of course, you laugh.

Friend: Oh shit, I ran off the edge of the map and lost all my stuff!

You: Disaster Strikes, Hilarity Ensues

(laugh)

Disaster Strikes, Hilarity Ensues by EjectedCasings April 2, 2021