Killing a TV show's or movie's main villain in a rushed, unexpected way – without providing more context or consequences.

The term originates from Season 8 Episode 3 of Game of Thrones, where *spoiler alert* Arya Stark unexpectedly killed the show's main villain, the Night King by dropping a dagger and stabbing him. The motivations of the big bad guy were never fully explained.

Similar to jump the shark.
Game of Thrones dropped the dagger last night when the Night King was killed off.

OR

The Mentalist really did drop the dagger when Patrick Jane killed Red John.
by kvikly May 27, 2019
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