I. fizz 1 /fɪz/ BrE AmE verb [intransitive]
if a liquid fizzes, it produces a lot of bubbles and makes a continuous sound:
champagne fizzing out of the bottle
II. fizz 2 BrE AmE noun [singular, uncountable]
[ Date: 1600-1700 ; Origin: From the sound ]
1 . the bubbles of gas in some kinds of drinks, or the sound that they make
2 . British English informal ↑ champagne