My dad taught me about these.
3 seconds sound clip from the Back to the Future Part II movie soundboard.
You can hear this line at 00:15:18.801 in the Blu-ray version of the movie.
Quote context
[...]
- Gramps! What the hell am I paying you for?
- Hey, kid, say hello to your grandma for me.
- And, McFly, don't go anywhere! You're next!
- My dad taught me about these.
- I'll show you, kid. I'm a crack shot at this.
- You mean you have to use your hands?
- Damn!
- Pepsi.
- Hey, McFly! I thought I told you to stay in here!
- Griff. Guys, how's it going?
[...]