1. = whiz

v.

1. move quickly through the air with a whistling or whooshing sound.
   ▸move or cause to move or go fast.
   ▸ (whizz through) do or deal with quickly.
2. informal urinate.

n.

1. a whizzing sound.
2. informal a fast movement or brief journey.
3. (also wiz) informal a person who is extremely clever at something. [influenced by wizard.]
4. informal an act of urinating.
5. Brit. informal amphetamines.