Nogarian refers to anyone who is attracted to anonbinary people. They can be of any gender (identity). The attraction does not have to be exclusive, but rather is an umbrella term for people who are attracted to anonbinary people.
History
The term was coined by Tumblr user beyond-mogai-pride-flags on October 31st of 2018.
Resources
https://variant-archive.tumblr.com/post/179630166857/nogarian-pride-flag