Like I said, your Kung Fu probably isn't too good.
8 seconds sound clip from the Mystery of Chess Boxing movie soundboard.
You can hear this line at 00:41:37 in the DVD version of the movie.
Quote context
[...]
- I know that maybe you're not really very good, just an amateur.
- Guess Yuen made a mistake. Can't be helped.
- Granddad, come on. Uncle Yuen sent him here.
- See what he's got? That's a real heavy pot lid. I'll bet that he's really strong.
- So you like him, huh? Kid, come here.
- Like I said, your Kung Fu probably isn't too good.
- Maybe the old man's good after all!
- Granddad. How long must he kneel yet?
- Who?
- Come on, the young man who's come here to be your pupil of course.
[...]