xaivu 

xaivu can be found in the old Greek language after a lot of online searching which can mean amongst other things "(Xáω,) to be empty, or open". It doesn't have a true meaning as it's a made-up word by a friend of the artist Xaivu who then decided to use the name of their trademark.
If you still require a definition, here's one by @xaivu themself: the feeling of emptiness and paranoia after waking up from a nightmare.

xaivu isn't an adjective or a verb, it's name

xaivu by xaivu March 15, 2020

xavius 

A leader of a group called real nigga's

xavius is a real real nigga

xavius by david Sr March 18, 2017

Xaiver 

A ugly nigga that plays to much

Xaiver said he’ll drop all his hoes for me, he capping out his socks

Xaiver by Dxnqy October 13, 2020

Xaiver 

1. musician
2. nice guy
3. smart
4. knows how to treat girls
5. muli-talented

person 1"Hey did you hear Xaiver last night?"
person 2"Yeah! He rocked that saxaphone!"

Xaiver by FallingDown July 27, 2011

Xaivier 

A person who Is well grounded is bright and splendid to be around. Easy going, Handsome, lovable,intelligent, creative, and overall happy. Good at sports and numbers

That boy has a great idea, such a versatile concept. He must be a Xaivier.

Did you see that play, that's a Xaivier for ya.

Xaivier by happymomma2 April 6, 2014

Xaivery Shion 

best boy ni cat. Mukhang aso dahil pinangalanan ko sa aso. joke. mahal na mahal ko to, kahit gago pa yan. pag lost, pakireturn sa dog pound. i love u baby labs.

"Who's that?"
"Xaivery Shion."
"The dog?"
"No, my best boy."

Xaivery Shion by sangwoah December 12, 2020

Xaiver Fark 

Xaiver Fark. A ugly as nigga that plays to much! Nigga gets no bitches. FUCKING virgin for life.

He has such a small dick.
NIGGA you play around to much.
Xaiver Fark..is a tight as nigga.

Xaiver Fark by NiggaTruthsTells October 27, 2023