I don't know but Owen "what the heck" Beck is one of the funniest I've ever seen. James "Lights Out" Toney is by far the greatest nick name of all time.
Lance Whitakers was the worst. He called himself "Goofi". Dominic Guinn was pretty poor too. "The Southern Disaster".
"Boxing" Andrew Maynard Seriously, WTF? Couldn't you find someone with just a tad of creativity to come up with a better nickname? "Golfing" Jack Nicklaus "Cycling" Lance Armstrong (actually maybe that's good because of the double meaning)
i think he was referring to the material iron, meaning hes strong and tough as iron. it was Mike "The Clothing Iron" Tyson