
You didn't say they couldn't pass through
my COLON first.
The Big Bang Theory Season 8, Episode 18

but I still have a COLON full of
yesterday's meals to keep me company.
The Big Bang Theory Season 10, Episode 23

Oh, yes. In the world of emoticons,
I was COLON, capital D.
The Big Bang Theory Season 3, Episode 1

He just went COLON, capital O.
The Big Bang Theory Season 3, Episode 1

...a clean COLON is just one less thing
to worry about.
The Big Bang Theory Season 1, Episode 1