Aku tau la

Just now during French class we did a bit of oral Q&A in class to put into practice what we have done so far.

Madame Yati to student A: Tu t'appelles comment? (What is your name?)
Student A to student B: Pssst...madame suruh aku buat apa tu?
Student B to student A: Madame suruh ko gi tandas (quiet laughter in the background; nak gelak kuat-kuat takut madame Yati marah)
Student A to student B: Ek eleh nak menipu tu agak-agak ah. Aku tau la....

And student A went to the front of the classroom to erase the white board.