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

that SOAP company
a strongly worded letter.
The Big Bang Theory Season 5, Episode 16

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

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

I suppose we could
turn it into SOAP.
The Big Bang Theory Season 11, Episode 11