Well, SC was the first game I ever played online, so I didn't have my awesome nickname yet, and i decided to name myself after my favorite Beatles song (clue: its about a walrus). When I started playing other games, I was officially "Freshman" so i started using that, but i got to XBL to late, and somebody already had it, so i tacked the adjective that may as well be the number 69 on the end, Ninja. Then one day, On MW2, i ran into the man who stole my name from starcraft, and in the most memorable kill of my life, i shot a 44 magnum into his head for the game winner (only kill I had on him, despite hunting him all game). I managed to get Freshman with no numbers on it hear though, and a few other online games and places, but yea people steal mine a lot I guess. Never ran into another Freshman Ninja.
EDIT: So I just googled it, Highly disturbed by the amount of Naruto content and the number of blogs some guy keeps writing about "ninja-ing" "Freshman" at "School". And then some thing about ballroom dancing.