And this movements called the backside technique.
4 seconds sound clip from the Of Cooks And Kung Fu (1979) movie soundboard.
You can hear this line at 00:12:48 in the Blu-ray version of the movie.
Quote context
[...]
- Oh your grandpa let you out?
- Grandpa was sleeping so I escaped.
- How's your kung fu coming along?
- That's flying sharks fin soup.
- Oh, that's the name of some food.
- Right, it's cooking kung fu. It's the best style.
- Oh that's stupid, it's silly. I've been training too... Swaying kung fu.
- And this movements called the backside technique.
- You call those moves kung fu? Hey, watch my moves.
- Oh, great. Much better than my backside stuff. Very good.
- Well, that's easy. I can do that.
[...]