Dear sir When you read this letter I'm on my way to some sun-shiny weather And sir, If I cause any problems I'll take'em up, well I just may try to solve'em And you could always ask Jimmy or Dave Yeah, they always seem to make your day Oh oho I'm gonna sit under that tree again I'm gonna stay there till I get fat again I'm gonna sit there singing the fat boy blues Dear sir, when I dumped you the last time I heard you call " hey fat boy sure is the last time" Well sir, now I don't want you to worry Cause I'll be home, but in no kind of hurry Yeah, I'm tired of the job I gotta do To make your living, just to get me through Oh oho I'm gonna sit under that tree again I'm gonna stay there till I get fat again I'm gonna sit there singing the fat boy blues Sitting under that old tree, learning 'bout biology Rosa, Mary, Sue, Lorene, Martha, Karen, Jill and me Oh oho I'm gonna sit under that tree again I'm gonna stay there till I get fat again I'm gonna sit there singing the fat boy blues Singing the fat boy blues Singing the fat boy blues