I'd rather scrape my balls with a cheese grater
A way to say something is so bad, you’d rather do something even more gross; usually said when someone suggests the worst possible option.
I’d rather scrape my balls with a cheese grater than go to that party again.
That restaurant was so bad, I’d rather scrape my balls with a cheese grater.
If we go to that game, I’m gonna yell I’d rather scrape my balls with a cheese grater.