He's one of them guys that cheers aloud back home and when they get over here and things get tough, they fold up.
7 seconds sound clip from the The Roaring Twenties (1939) movie soundboard.
You can hear this line at 00:04:21 in the DVD version of the movie.
Quote context
[...]
- I hoped this business would be over with before I got here.
- What are you, a college kid?
- A lawyer, huh? Can you think of anything that can get us out of this hole?
- Shut up.
- I don't like heroes or bigmouths.
- We're all scared. And why shouldn't we be? What do you think we use in war, water pistols?
[...]