Codspiking - The act of throwing a fish finger (cooked or otherwise) into another persons alcoholic drink without the drinkers knowledge. People usually do this as a prank to get someone annoyed/irate for comical value.
If that Codspiker Kev is Codspiking again, I ain't coming to your party.
Or...
Richard was Codspiked last night, he smelt of fishy Birdseye fingers all night.
Or...
What the hell is floating around in my beer...oh mate, you been codspiked again, 3rd time this week!!
It is commonly known and perfectly acceptable to place the nickname Sausage in front of anybody called Ste, Stephen or Steve.
saw-sij or, esp. British, sos-ij
Hey Sausage-Ste make me a brew, good man.
Sausage perfectly good nickname for anybody with the name Steve.