on purpose

on purpose にはわざと、故意にといった意味がある。0:30 this is Amy. I think you butt-dialed me. no, I dialed you with my fingers. he called me on purpose. 誤発信じゃないってよ。わかってて、私に電話くれたのよ。

Trainwreck Movie Clip - Bill Hader, Amy Schumer, Vanessa Bayer , LeBron James
https://www.youtube.com/watch?v=2RU4n0WmCeI  5:41 I did that on purpose. I just wanted to get a better look at you. わざとぶつかったのさ。もっと君を近くで見たくてね。
High School USA 1983
https://www.youtube.com/watch?v=j5s44A8uIEQ  4:17 we'll just screw the whole thing up on purpose. みすみすこの計画を台無しにするのかよ。
Mission: Impossible Ghost Protocol "Open the Door" Movie Clip Official [HD]

練習問題解答
b-1022 on purpose
b-3894 on purpose