
because it lives in a state-of-the-art
German incubator.
The Big Bang Theory Season 10, Episode 8

...and I could smell German chocolate cake,
which is my favorite.
The Big Bang Theory Season 1, Episode 16

Like reenacting the ancient German practice
of trial by combat.
The Big Bang Theory Season 8, Episode 19

No, I don't know German.
The Big Bang Theory Season 2, Episode 3

You know,
the German philosopher,
The Big Bang Theory Season 5, Episode 7