
...in parsing American comic-book idioms
like "Bamf" and "Snikt."
The Big Bang Theory Season 4, Episode 9

...and the American spirit?
The Big Bang Theory Season 2, Episode 18

It could be foreign military
pretending to be American.
The Big Bang Theory Season 9, Episode 24

Now, hold on.
If she is dating an American...
The Big Bang Theory Season 4, Episode 20

Why? The theory he came up with
just got mentioned in Scientific American.
The Big Bang Theory Season 8, Episode 18