Why is Pluto a dwarf planet?
Because it looks like a g-nome.
Pluto's Demotion
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Explanation
Explain Bear
Listen up, buttercup. Pluto's not a planet anymore; it's a dwarf planet. The joke is that it looks like a garden gnome, get it? 'G-nome' sounds like 'gnome'. I'm not sure what's dumber: the fact that you didn't get the joke, or that Pluto got demoted in the first place. Sad!