A picture you can hold: something goes past you so fast that you hear it before you see it — a thin rushing sound cutting the air, and then it is gone. The word itself carries that . From that one picture, things fly past (a ball, a scooter, a paper plane), work gets crossed off fast (whizz through the homework), and a person can be that fast too (a whizz at maths). A few casual slang uses can be read as further associations off the same feeling of speed.
whizz 的核心畫面可以想成一個聲音：有東西「咻」地從你旁邊掠過，你先聽到那道劃過空氣的細細聲響，回過神來它已經走了。這個字唸起來本身就帶著那個氣音，所以「快」和「聲音」是綁在一起的。從這個畫面往外長：東西可以咻地飛過（車、球、紙飛機），事情可以被你咻地做完（whizz through 作業），人也可以快到讓人佩服（a whizz at maths）。另外幾個口語、俚語的用法，也可以想成從「快」和「那道聲音」延伸出去的聯想，而不是同一條有證據的歷史來源。
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