動作最快的那個人
同樣叫「快的那一個」，只是這次被叫的是人，而快的是球速，不是花掉的時間。
noun · C1
In cricket, a fast bowler: the player whose job is to send the ball down at high speed.
（板球）快速投球手
核心畫面
One way to hold it: quick with -ie stuck on the end, the way English makes a short, friendly noun. What you get is the quick one. Sometimes the quick one is a thing that takes almost no time; sometimes it is the person who does something faster than anybody else.
可以想成 quick 後面加了 -ie，英文很習慣這樣把一個字變得又短又親切，做出一個口語名詞：「快的那一個」。有時…更多收起
可以想成 quick 後面加了 -ie，英文很習慣這樣把一個字變得又短又親切，做出一個口語名詞：「快的那一個」。有時候那個「快的」是一件幾乎不佔時間的事，有時候是動作比誰都快的那個人。From the word’s history
The source gives the formation directly: quick plus the suffix -ie.
來源直接說明了造字方式：quick 加上字尾 -ie。
Wiktionary etymology supplied in this packet (kaikki:3f6f69a190036ae4:954113119:10469)
From the picture
Also in this word
noun · B2
Something that takes only a short time and little effort, such as a quick question, a short meeting, or a small job you can finish at once.
很快就好的小事
noun · B2
A short, hurried act of sex, fitted into whatever small amount of time there is. The source marks this use as humorous.
匆匆一次的性事