The tagline of the game Dark Souls.

Protip: They aren't kidding.
Guy 1: Played some Dark Souls the other day.
Guy 2: How'd it go.
Guy 1: When the box said, "prepare to die," it turned out they were serious.
by Intelligence001 January 18, 2018
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A greeting used to proclaim one's intention to kill based on past murders. More specifically, if you happen to be in the movie The Princess Bride.
Person 1: Hallo. My name is Inigo Montoya. You killed my father. Prepare to die.
Person 2: Dude, wtf?!
Person 1: Princess Bride moment.
Person 2: Oh got it! AAAAAAAH (*runs away screaming)
by lrb323 December 12, 2010
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