zip gun 
noun North American informal
A cheap home-made or makeshift gun.That's what she said anyway, by the time I was old enough to make my first zip gun I knew that temp was just another name for hooker....
- He faced the Hulk across a boxing ring, in the gym where a kid with a zip gun once tried to kill Jack McGee.
- McVay leads a gang of kids armed with switchblade knives and zip guns who set upon Klein on his way to rehearsal with his doo-wop group, the TeenTones.
- give someone a bloody nose
- give someone a break
- give someone a dose (or taste) of their own medicine
- give someone a fit
- give someone a hard time
- give someone a holler
- give someone a mouthful
- give someone an inch and he (or she) will take a mile
- give someone a piece of one's mind
- give someone a shout
- give someone away
- give someone Bondi
- give someone credit for
- give someone grief
- give someone head
- give someone hell
- give someone one
- give someone (or get) a thick ear
- give someone (or get) the bum's rush
- give someone (some) skin
- give someone the big E
- give someone the bird
- give someone the boot
- give someone the creeps
- give someone the elbow