Glasgow slang for those occasions when you fail dismally to achieve sexual relations with a woman due to penile flacidity.
See Sexual Intercourse....or lack thereof.
A - "What a night, man. We went for movies and dinner and drinks...I drank a little too much though and I managed only the Turley Treatment before dozing off..."
R - "Gonna see her again?"
A - "After that? Doubt it.