Nyaning

Based on the annoing nyan song, Nyaning is when someone does stuff really annoying all the time.

Guy 1: Dude, why is Dan so annoying!
Guy 2: I dont know man, but he is nyaning like crazy!

Non-Nyan

Someone who isn't a catgirl, catboy or nyanbinary

"did you see that new kid?" - purrson 1
"yea, i heard they're a non-nyan" - purrson 2