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

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

She already likes SOAP bubbles
more than us.
The Big Bang Theory Season 10, Episode 21

...that the
SOAP was...
The Big Bang Theory Season 5, Episode 16

Your SOAP is not the issue,
it's your filtration system.
Breaking Bad Season 4, Episode 3