It's actually British.
The Big Bang Theory Season 4, Episode 4
I think I can sell it
if we call it "Big British Porta-Potty."
The Big Bang Theory Season 8, Episode 19
Very similar to C-4, British origin,
and that the connexion is perfect.
Money Heist Season 1, Episode 11
Fine. Um, he's British.
The Big Bang Theory Season 9, Episode 8
And speaking of ending relationships,
when British Honduras became Belize,
The Big Bang Theory Season 9, Episode 15