What are unusual couples in omegaverse called?

In omegaverse, couples that aren't the standard alpha x omega and beta x beta are deemed unusual or even often discriminated in their world. I wonder if they have a term for it. I haven't read an omegaverse where people name-call them. Whether it's an insult or a compliment, if they had to be categorized, what would you name them as?

For me, "deviant" sounds cool.