you cut a BAGEL with your keys.
The Big Bang Theory Season 7, Episode 10
You can't find a BAGEL in Mumbai
to save your life.
The Big Bang Theory Season 1, Episode 4
A Romulan battle BAGEL?
The Big Bang Theory Season 4, Episode 9
Okay, if I won't
put a BAGEL on my desk,
The Big Bang Theory Season 12, Episode 5
Uh, Raj. Bagel down.
The Big Bang Theory Season 12, Episode 23