When an actor turns out to be British after playing an American character, without prior knowledge of the actor being British in the first place, thus being a surprise british. Similar to surprise buttsecks.
Guy 1 after watching the new spiderman: "Wow, that was a great movie!"
Guy 1 watching an interview on the movie: "WHAT? He's British? Damn, what a surprise british."
Guy 2: "Did you know that that guy in the Dark Knight is also British?"
Guy 1: "No..."
Guy 1 watching an interview on the movie: "WHAT? He's British? Damn, what a surprise british."
Guy 2: "Did you know that that guy in the Dark Knight is also British?"
Guy 1: "No..."
by Toffrox July 19, 2017
Get the Surprise Britishmug.