Ok, to help you out...
I love basketball, big Laker fan. I still play a lot and coach a high school team.
Love Mountain Biking.
Things I've thought of so far, some obscure former NBA Player name, like Manute Bol or something. That dude always cracked me up.
Or Ricky Rubio, inside joke with a friend, plus I just think his name is funny.
Or something with Mountain Biking, or something that has nothing to do with anything.
Ideas?