情緒失控
這一族就是核心畫面本身：情緒衝過煞車線。
out of control (emotion) · adjective · C1
Not able to control your feelings or what you do, because you are very upset, afraid, or excited.
歇斯底里
核心畫面
One possible way to picture it: a person whose feelings have burst past the point where they can be reined in — crying, screaming, or laughing in they cannot stop. The word points at the loss of the brake, not at which emotion is pouring out.
一個人的情緒已經衝過了自己能踩煞車的那條線——哭到停不下來、叫到停不下來、或笑到停不下來。這個字真正指的不是「什麼情…更多收起
一個人的情緒已經衝過了自己能踩煞車的那條線——哭到停不下來、叫到停不下來、或笑到停不下來。這個字真正指的不是「什麼情緒」，而是「已經收不回來了」這個狀態：身體還在抖、聲音還在跑，理智追不上。所以它既能配恐懼，也能配興奮，甚至能配笑。From the word’s history
From Greek hystera "womb", via Latin hystericus — old medicine blamed uncontrollable emotional fits on the womb, which is why the word originally described a medical condition and still carries "fit you cannot control".
字根來自希臘文 hystera「子宮」，經拉丁文 hystericus 進入英語。古代醫學把無法控制的情緒發作歸咎於子宮，所以這個字一開始是個病名；今天雖然醫學說法早就被推翻了，但「一陣自己壓不住的發作」這個核心畫面留了下來。
Wiktionary (hysterical, hysteric) — from Latin hystericus, from Ancient Greek ὑστερικός, from ὑστέρα "womb"
Two branches
笑到失控
把「停不下來的發作」這個畫面單獨套在笑上面，久了就變成描述那個讓人笑成這樣的東西。
extremely funny · adjective · C1
Extremely funny. People often use this about a film, story, or joke that makes them laugh a lot.
超好笑
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
hystericaladj/hɪˈstɛɹɪkəl/
- 1
Of, or arising from hysteria.
- Henrietta gasped for breath; but she swallowed down the hysterical emotion, and signed with her hand for Walter to go on.
- An event of this nature, a marriage, or a refusal, or a proposal, thrills through a whole household of women, and sets all their hysterical sympathies at work.
- 2
Having, or prone to having hysterics.
- 3
Provoking uncontrollable laughter.
- She was a fat, round little woman, richly apparelled in velvet and lace, […]; and the way she laughed, cackling like a hen, the way she talked to the waiters and the maid,[…]—all these unexpected phenomena impelled one to hysterical mirth, and made one class her with such immortally ludicrous types as Ally Sloper, the Widow Twankey, or Miss Moucher.
- There is a certain irony in all of this because in their hysterical use of charge of “double standard” – that Israel is being “singled out for criticism”– it is Israel’s supporters who are themselves guilty of a “double standard”, since, if they were to have their way, it is Israel that would be singled out as the only country that cannot be criticised.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。