This is probably an obscure fanart. "Arnold" was a newspaper strip by Kevin McCormick that ran 1982-1988. It's about a middle-school boy who says nasty, bizarre things because he doesn't know any better. The strip had a very limited cast, with Tommy and Mr. Lester being the only other prominent characters (other characters would yell from off-panel).
I wish this strip was reprinted in books; I had to use newspaper archives to get copies of the strip
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