遅刻しちゃう

end up being late

→ 遅刻
phrase Rare #40,398
end up being late A casual contraction of 遅刻してしまう, often suggesting that being late is an unwanted outcome. The subject is understood from context.
JA: 急がないと、遅刻しちゃう。
EN: If I don't hurry, I'll end up being late.

ママが遅刻しちゃう

Mom's going to be late.

— ライフ・イズ・ビューティフル (1997)

遅刻しちゃうよ

I'm going to be late!

— 崖の上のポニョ (2008)

遅刻しちゃうかと思った。

I thought I was going to be late.