
I love how your hair
is always on the SOAP.
The Big Bang Theory Season 8, Episode 9

"Number of days without
Amy's hair on the SOAP."
The Big Bang Theory Season 10, Episode 5

And this recurring thing on a SOAP.
The Big Bang Theory Season 2, Episode 19

...and you spend the afternoon
making 15th-century SOAP with Wolowitz?
The Big Bang Theory Season 2, Episode 2

That was not 15th-century SOAP.
The Big Bang Theory Season 2, Episode 2