2. A common curse.
3. The act of using a slingshot to propel shit at people.
A: You're an asshole.
B: What? You're the asshole.
C: Hey, stop the shit slinging.
2. After walking onto a rake, hence causing it to rise in your face: shit slinging rake!
3. After slingshotting shit at someone:
A: Look, I got him.
B: Good shit slinging, Mr Jobs.