Classificatory Systems Are For the Dogs!

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character,costume,disney,dogs,double meaning,Hall of Fame,literalism,mascot,Neil deGrasse Tyson,planet,pluto
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Pluto's but a simple dog, Neil DeGrasse Tyson. HOW DARE YOU BRING HIM DOWN LIKE THAT? - Matty Malaprop

PLUTOnium

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radioactive,disney,pluto,radiation,plutonium,literalism,prefix,mutation
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I should have known Steamboat Willie ran on something dubious... - Matty Malaprop

WE DON'T TALK ABOUT HIM IN THIS FAMILY

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denial,double meaning,groan-inducing,Hall of Fame,homophone,literalism,pluto,son,sun
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... but only because CPS deemed him unfit for planethood. - Matty Malaprop