身體把液體射出
這一支就是核心畫面用在身體上，而且是今天唯一還活著的用法。
verb · C1
When a man ejaculates, semen comes out of his penis. The source also uses the word of other mammals, and of the body sending fluid out of a duct in general.
射精
核心畫面
One quick throw . Something is held inside, pressure builds, and then it is sent out all at once — not poured, not leaked, thrown. The word does not care much what is thrown: a body can throw fluid out, and in older books a surprised person throws a word out of their mouth the same way.
可以想成往外猛地一扔。東西本來關在裡面，壓力積起來，然後一下子送出去——不是慢慢倒，也不是漏出來，是扔出去。這個字其…更多收起
可以想成往外猛地一扔。東西本來關在裡面，壓力積起來，然後一下子送出去——不是慢慢倒，也不是漏出來，是扔出去。這個字其實不太在意扔的是什麼：身體可以把液體扔出去，舊小說裡一個被嚇到的人，也是用同樣的方式把一句話從嘴裡扔出來。From the word’s history
The packet's Wiktionary etymology tree runs through Latin ex / e- 'out' and iacio 'to throw' (with iaculum, a thing for throwing). That throwing-out is still the shape of every use in the entry.
來源的字源樹經過拉丁文 ex／ē-（向外）和 iaciō（丟、投擲），還有 iaculum（用來投擲的東西）。這個「往外扔」的動作，就是這個字每個用法今天還在做的事。
Wiktionary etymology tree supplied in packet (kaikki:3f6f69a190036ae4:609346498)
Two branches
把話從嘴裡扔出來
同樣是往外一扔，只是扔的是一句話。這是比喻的延伸，不是另一條字源；來源把它標為 old-fashioned、literary。
verb · C2
To say something suddenly and loudly, especially because you are surprised. The source marks this use as old-fashioned and literary.
（舊用法）脫口喊出