And he tried again—Lou always persisted—but no soap.
See also
no-soap
no soap, radio
Etymology
The phrase appears, with no clear meaning, in a 1755 Samuel Foote nonsense prose poem, "The Grand Panjandrum". In the U.S., soap took on the meaning of money (see OED), and so no soap was a denial of money, say in response to a request for some.