A term used to express a very large disliking of a product or service, where one would rather cut their male appendage off with a Rusty Breadknife then use said product or service again.
Person 1: "Ah man, I just downloaded that awful Candy Crush game everyone seems to be play, I don't get it? It's shit!"
Person 2: "I know what you mean. I'd rather get a Rusty Breadknife..."