Not a sausage
Definition 1 of 1
Pro Tip 1/3British Slang
Understand that 'not a sausage' is a British slang phrase meaning 'nothing'. It's not used in formal situations. 
After searching the entire room for my keys, there was not a sausage.
Pro Tip 2/3Humorous Tone
'Not a sausage' often brings a humorous or light-hearted tone to the conversation about lacking something. 
Did you catch any fish today? Not a sausage!
Pro Tip 3/3Conversational
It's commonly used in conversational English, especially among friends or in casual settings. 
I tried to get tickets for the concert, but not a sausage.