fizz /fɪz/noun 3verb 3forms 3phrases 1 noun3 •An emission of a rapid stream of bubbles.I poured a cola and waited for the fizz to settle down before topping off the glass. •The sound of such an emission.Evan sat back in the hot tub and listened to the relaxing fizz and pops produced by the eruption of bubbles. •A carbonated beverage, especially champagne.Nathan ordered an orange fizz from the soda jerk at the counter. verb3 •To emit bubbles. •To make a rapid hissing or bubbling sound. •To shoot or project something at great velocity.Each lad tried to send his [burning] disc fizzing and flaring through the darkness as far as possible. — 1911 formsfizzed · fizzing · fizzes Phrases with fizz fizz outTo stop working; to let (someone) down; to abandon (someone).