Nothing wrong with that at all Ron... in fact I was thinking of changing mine from "Fat Boy" to "Chunk" (reference to Goonies and I call my 7 month old 30lb son Chunk. HA) or "Moose" (was my dad's nickname... and boy did he love bbq!). Even if I stuck with Fat Boy, it'd only bother me if you were my neighbor and built one exactly like mine... then it'd be on!
Looking forward to your build!
When I saw that tank, my first thought was Fat Boy, as the tank was "Fat". Who knows, I may change it later.