after thinking over some lines by nokis ive seen in sunshine, and these descriptions in super sluggers,
(these nokis are clearly girls)
ive come to the conclusion that nokis just refer to anyone and everyone as a guy. its just a completely gender neutral term for them. who knows how this happened
"Guy" in English is usually a generic to term for a person. "You guys" is a common referral to multiple people. I'd sometimes mix it up with "you ladies" lol.
i had a convoluted explanation that i realised completely fell apart, but at the very least if its not gender neutral you can sort of infer they use that word a lot anyway
and quotes from sirena beach from two separate nokis:
"I'm beginning to have my doubts about this guy..."
"The guy in front of me got the last one. I'm so unlucky..." (note: idk who "the guy" is referring to in this instance)
sure this explanation isnt from much of the game, only sirena and gelato beach, and im not sure if this appeaers anywhere else, but this is My headcanon so I get to choose the. headcanon