I'd totally die in the heat with 〜じゃう

Manga panel from ホリミヤ showing example of I'd totally die in the heat with 〜じゃう.
ホリミヤ » Volume 1 » Page 45

On a summer day, Hori and her friends in class can’t ignore the heat.

由紀(ゆき):
(そと)(あつ)さってなんなの…? クーラーないと()じゃうって…っ」
“What's with this heat outside...? I'd totally die without the AC...”
Literal: “What is this outside heat...? Without an air conditioner, I would end up dying...”
「この日差(ひざ)しのなか体育(たいいく)とか絶対(ぜったい)無理(むり)だわ…」
“There's no way I can do PE in this blazing sun...”

Key Points

1()んじゃう = “I’ll end up dying”
  • ()んじゃう is the casual spoken contraction of ()んでしまう, from () + 〜でしまう
2Why じゃう follows
  • For verbs whose て-form ends in , 〜でしまう contracts to 〜じゃう in casual speech.
  • () becomes ()んで, then ()んでしまう becomes ()んじゃう.
3クーラーないと sets the condition
  • クーラー(が)ないと means “if there is no AC” or “without the AC”; the subject marker is omitted in casual speech.

Vocabulary

(Impossible)

無理(むり) means impossible, unreasonable, or too much to ask. It describes something that cannot be done or that forces things beyond proper limits. In conversation it often means both “that’s impossible” and “don’t push yourself too hard”.

(Physical education)

体育(たいいく) refers to educational activities that promote healthy physical development through appropriate physical activity and cultivate physical abilities and attitudes conducive to a healthy lifestyle.

(Absolute)

絶対(ぜったい) means absolute or unconditional. It suggests something so complete that it stands beyond opposition or exception.

See Also

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