expression
I told you so; see, I told you
Colloquial phrase used when a predicted negative outcome occurs, expressing 'I told you so' or 'see, I warned you'. Derived from 言わないことではない (it's not that I didn't say it).
See also: 言わないことではない
ほら、言わんこっちゃない。傘を持って行けって言ったのに。
See, I told you so. I said you should take an umbrella.
言わんこっちゃない、また遅刻だ。早く起きろって言っただろう。
I told you so—you're late again. I told you to get up early.