Nice
There’s one telltale sign that your joke is a good one: when other people offer a nice or, if they’re generous, a noice! However, nice-ing your own jokes is generally frowned upon because it just tells the world that nobody except yourself appreciates your jokes.
That said, aren’t people usually their own toughest critics? So, applying that logic, if you appreciate your own joke, that means your joke was an extraordinary one, right? That would mean that everyone else doesn’t possess the mental capacities to thoroughly comprehend the subtly of the burn you just delivered? Yeah, that has to be it—it’s everyone else’s fault, not ours.