because it lives in a state-of-the-art
German incubator.
The Big Bang Theory Season 10, Episode 8
Quartz, from the
German "quarz"
The Big Bang Theory Season 12, Episode 2
What's German for "annoying"?
The Big Bang Theory Season 12, Episode 7
and my bowel movements run
like a German train schedule.
The Big Bang Theory Season 5, Episode 10
meaning German.
The Big Bang Theory Season 12, Episode 7