Hackering off - The worst kind of self-pleasure where you bounce your hips l

The worst kind of self-pleasure where you bounce your hips like a sad kid on a swing while you pretend the object you're rubbing against is your ex.

I hacked off in the car because my ex texted me and I was too lazy to reply.

I hacked off in the bathroom while my brother was taking a shower and he heard me and laughed.

I hacked off in the park and the dog watched me like I was doing something weird.