I got the nickname Lucky a few years ago when I got in a motorcycle wreck. I hit a deer broadside doing 75mph on my sportbike, and after the damage was cleared the bike was totalled, the deer was dead (and had went 155ft down the highway with me and the bike) and all I had was a broken bone in my hand.
The doc that did the surgery on my hand would see me in the hospital and say "hey Lucky!" His friend and his friends wife were both killed on a bike when they hit a deer and so he thought it was amazing that I could make it through almost unscathed.
Then all my friends picked up on it, and now there are people that don't even know my real name, but if you say Lucky they know exactly who I am.
I liked it because I have Irish blood so who am I to change it