The sound of a bottle of carbonated liquid when you slowly remove the cap.
Fizz is the present tense of fuzz.
League of legends champions!!
I used to work with an Irish guy who always used fizz (or phizz) to mean face. I dunno if it's general slang in Ireland. Eg, "What's that funny look on your face?"
He'd also say, "Take a phizz at this..." meaning to have a look at something.
It's possibly a derivative of phizzgig which might mean a pimp but which he used as phizzgigging meaning wasting time.
It's a game !