This is Chinese boxing. Once you've mastered it, you'll be very powerful.
8 seconds sound clip from the Dirty Ho movie soundboard.
You can hear this line at 01:08:41 in the DVD version of the movie.
Quote context
[...]
- That's good. You must kick fast and retreat fast. The shoulder's balanced.
- Master, why do I keep on kicking fast Why, it's gonna burn my feet.
- Stop that nonsense, continue.
- Good. Move your hands and feet simultaneously.
- This is Chinese boxing. Once you've mastered it, you'll be very powerful.
- Master, if I keep this up, I'll be like a roast pig.
- It's me.
- A girl? It's seven or eight!
- So many?
[...]