o'murchu Share definition Flag A large pimple that grows from the side of your head. Some people may say that it looks like a Rice Krispie fused to your skull. you better get that o'murchu checked out its really big and grose o'murchu by Unknown Entry May 22, 2007 0 0 Get merch Get the o'murchu mug. Buy Now — $32.95 See more merch
