sweet FA
rude slang Nothing. The phrase is a shortening of "sweet Fanny Adams" (a name chosen for its initials) and is a euphemism for "fuck all," which means the same thing. I worked there for 20 years and was dismissed with sweet FA to show for it!
sweet FˈA
(also less frequent sweet Fanny ˈAdams) (British English, informal) nothing; nothing important: ‘What happened while I was away?’ ‘Sweet FA.’