A COLON calling card, if you will.
The Big Bang Theory Season 6, Episode 9
He just went COLON, capital O.
The Big Bang Theory Season 3, Episode 1
Probably fat-free
and good for your COLON.
The Big Bang Theory Season 7, Episode 23
As long as it doesn't originate
in a Russian man's COLON.
The Big Bang Theory Season 8, Episode 22
You didn't say they couldn't pass through
my COLON first.
The Big Bang Theory Season 8, Episode 18