You don't know yourself, if you're a boy or a girl.
4 seconds sound clip from the Executioners From Shaolin (1977) movie soundboard.
You can hear this line at 00:40:28 in the DVD version of the movie.
Quote context
[...]
- Every day's the same. Stand as long as you can.
- Look at him, Hung Wen-ting, standing so still!
- You don't know yourself, if you're a boy or a girl.
- Hey, let's all pull his legs apart.
[...]