First of all, before we get into the Headcanons:
100 READS LETS GOOOOOOO
And also, pls check out my current series, SockSMP Rewritten. Chapter 5 is here and it has some lore.
Now, let's get onto to FatGod himself shall we?

-Has taken most custody of Nadwe after his parents were killed in the same fire Socks was in

-His fur is not a onesie, instead it's something he was born with

-Has a baseball bat with multiple stickers called Maple Wood, and one of the stickers has a trans flag

-Most if his older family calls him Maverick, the name of his father who was a doctor that disappeared for most of Meme's life

-Met Medz when he crash-landed on his front yard

-Him and his mom had immigrated from India to America

-Like Blaza, English is his second language, so he can't pronounce long words without having to look at it a second time

-Shares the custody of Nadwe with Joocie

-Is a good ice skater and tried to once teach Tbh

-Knows how to play the guitar

-Is neurodivergent and has ADHD and Dyslexia

-Met Tbh in middle school art club when Tbh was being physically bullied

-Gets startled easily with sudden loud noises

-Made the mistake of letting Medz cut his hair (it ended so bad I can't describe it)

-Has shoulder length blue hair