
I think I can sell it
if we call it "Big British Porta-Potty."
The Big Bang Theory Season 8, Episode 19

(in high-pitched, fancy British voice):
Oh, Duchess, look at me.
The Big Bang Theory Season 7, Episode 20

And speaking of ending relationships,
when British Honduras became Belize,
The Big Bang Theory Season 9, Episode 15

Fine. Um, he's British.
The Big Bang Theory Season 9, Episode 8

the daughter of the British ambassador,
instead of eight Spanish youngsters,
Money Heist Season 1, Episode 7