言わんこっちゃない

Meaning

1. exp
   I told you so

Example sentences

• 「おい。走ると危ないぞ」「え？・・・わっ、わ、うわわ～～～っ」「あーあー、言わんこっちゃない」

  "Hey! It's dangerous to run here." "Eh? ... A-a-Aaah!!" "Oh dear, what did I tell you?"

• 言わんこっちゃない！

  I told you so!