I think complexity is mostly sort of crummy stuff that is there because it's too expensive to change the interface.

My family can always tell when I'm well into a novel because the meals get very crummy.

I was in a really crummy pop-punk band. I think we did a whole bunch of Blink-182 covers and we were on the fringe of losers and jocks. So we invited all the cool kids to come watch us play in our bass player's brother's bedroom. And it was terrible but everyone thought we were so cool.