On the cover of a recent edition of Entertainment Weekly is a picture of Tina Fey and Steve Carrel, who will appear in a comedy entitled Date Night, which will open this coming weekend.
A tagline on the cover says that, in the movie, hilarity ensues.
TOUCHE! A CLICHE!
I've read that too, too many times in reviews of comedies. I've never read the word ensue used in another context. More importantly, I've never heard any body use it in their everyday conversation.
The word's definition is to take place as a result of something. A synonym is follow.
Here's an example: After I heard the thunder far off in the distance, rain ensued.