All it would have been was words, hot air from a buffoon.
4 seconds sound clip from the Back to the Future Part III movie soundboard.
You can hear this line at 01:02:22.623 in the DVD version of the movie.
Quote context
[...]
- I want everybody to know that the gun that shot Buford Tannen was a Colt Peacemaker!
- Hey, no problem. Thanks a lot.
- Of course you understand that if you lose, I'm taking it back.
- All it would have been was words, hot air from a buffoon.
- Instead, you let him rile you. Rile you into playing his game, his way, by his rules.
- Seamus, relax. I know what I'm doing.
- He reminds me of poor Martin.
- Aye.
- Who?
- Wait a minute. Wait a minute. You have a brother named Martin McFly?
[...]