This comic is hilarious because Crankshaft's being an enormous fucking asshole.
The baffling thing is that, say you live next to an enormous fucking asshole. Why would you invite him to your party? Are you that lonely and pathetic? It wouldn't seem so, as there are other people there. Or maybe they're all enormous fucking assholes too, as that's the only kind of person you can get to come to your parties? But that doesn't make sense because enormous fucking assholes generally don't want to attend parties and only do so by accident, like Crankshaft. So maybe you're just a masochist? Or an idiot? Or a character/plot device in a comic strip?