take the rag off the bush
1. old-fashioned To excel beyond anyone or anything else. There were a lot of great entries, but I must say that this chili here takes the rag off the bush!
2. old-fashioned To be the most outrageous or unbelievable thing possible, either in a positive or a negative way. When I found out he had been reading through my text messages, well, that took the rag off the bush! I've heard some tall tales in my time, but that one takes the rag off the bush!