whiz /wɪz/noun 5verb 4forms 3 noun5 •A whirring or hissing sound (as above). •(informal) Someone who is remarkably skilled at something.He's a whiz with the computers. •(slang, vulgar) An act of urination.I have to take a whiz. •(UK, slang) Amphetamine.And I don't quite understand just what this feeling is / But that's okay cause we're all sorted out for E's and wizz — 1995 •(UK, slang) Pickpocketing. verb4 •To rush or move swiftly with such a sound. •To make a whirring or hissing sound, similar to that of an object speeding through the air. •(slang, vulgar) To urinate.We whizzed in the bushes. •To throw or spin rapidly.I whizzed the ball past the catcher. formswhizzed · whizzing · whizzes