It seems Atlantean genocide won’t come about via brute force, so to encourage mass hatred of Atlanteans, I will be creating slurs for them (this will make them more hated & dehumanized, etc, etc).
Do YOU have a slur to add? Feel free to share your own contributions!
Mulens
Furries 
I hope a piece of popcorn gets stuck in-between your teeth and it’s really hard to get out
This scared me so much for a solid 5 seconds because just seeing “slurs against” made me audibly scream.
me when racism:
They ain’t even human anymore
They don’t have the cognitive capacity to understand what a slur is, let alone take offence
They are more likely to just mutilate you while you try insulting them
Fish “people” 
Fisher Price
clammies
Seamen.
Excuse me sir as a true seaman I am highly offended
There are virgin women sir
Had to do a double take cuz I thought stocksounds made this post
undyne
Mer“people”
Why does that remind of mermaid man from spongebob
disgusting nondescript creatures, or DNCs
(they need to get out of my sight)
Guppies
Shrimps
mudskippers
lumpsuckers (Pacific spiny lumpsucker - Wikipedia)
etc