
A COLON calling card, if you will.
The Big Bang Theory Season 6, Episode 9

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

HOWARD: If I push any harder,
I'm gonna give birth to my COLON.
The Big Bang Theory Season 1, Episode 14

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