Like what it says in the title, as encouraged by Zeldar.
What are your favorite slurs against homo sapiens as a whole, from the realms of fiction?
I’m a little under the weather, so I can only think of “Meatbag” at the moment; most notably used in Futurama, and EU Star Wars; typically used by robots.
When Fry thought he was a robot, he responded to a command with “negative, bossy meat-creature.” I like that, but, sadly, “bossy meat-creature” is hard to work into a conversation.
And there’s always good-old “monkeyboy” from Buckaroo Banzai.
I also like “monkey boy”; it was a slur often used by the computer opposent in an old video game I liked. “Let’s try this again, Monkey Boy”; lines like that.
“Crunchies”, from the slimy aliens in The Stainless Steel Rat Wants You !
Klingons referred to humans sneeringly as “Earthers” in a couple of episodes of ST:TOS. “Terrans,” too, I think, but it’s more the tone of voice than the word that seems insulting. We’re called “cattle” by carnivorous sentient lizardlike bipeds in William Forstchen’s The Lost Regiment series. Legolas refers to Aragorn and Boromir as “children” in LOTR, but in a kindly if somewhat patronizing way, in context, given his long Elven lifespan.
In the Harry Dresden books, supernatural nasties like vampires call humans prey animal names like “kine”, “bucks”, and “does”. It’s actually kind of amusing when you keep in mind that they keep a low profile because if humanity in-universe was ever pushed into admitting they existed they’d collectively get stomped into a greasy spot.
Molly : “But he’s not supernatural ? He’s just a guy, right ?”
Harry : "Keep in mind that most of the planetary surface is dominated by ‘just guys’. "
"Slay the dragon, you fool ! I said SLAY the dragon ! With an ‘S’ ! "
Of course “muggles” from the Harry Potter universe.
And for some reason, my first thought was “slimies” from Ender’s Game, though the aliens don’t actually use the term – it’s just what Ender thinks they might use. I haven’t read it in a while: it was “slimies” wasn’t it?