Throwing up stones - love fun. As someone - gossip about whom to throw.
Quitting something can mean:
You are tired or ready to move on in some area of your life (such as quitting your job could mean you're tired of your job, you're ready for a new job, or you're exploring how it would feel to quit in real life)
You are giving up on something, or would like to
The idea of failure, or imagining it somehow in your life