pop gun

Now and then I'd come across a little pop-gun pistol, just about right for plugging teeth with, which I'd throw out the window.

He did not forget to arm himself quite to the teeth with his pop-gun, his bow, and his air-pistol.

I never did; with the pop-gun and umbrella you will revolutionize the science of angling.

But we'll look, anyhow, and maybe I can scare one of them with my pop gun.

At once it bursts out into full flower, with this funny noise, like a pop-gun.