I slide into that when I'm avoiding things. It's what I'm doing here, I guess. Example would be the summer I was supposed to study for the bar. I got behind at the start, and then I'm stressed about being behind so I play games to get that dopamine hit, calm myself down, and avoid the panic that comes with thinking about my situation, then I'm even further behind, etc., until it's a week before the test and I've basically done nothing of substance. Similar habits definitely held me back in my first couple law firm jobs and are still threatening me.
Suffice to say, if I'm seeking dopamine hits it's because something is wrong.