[Kyser] 

Kyser is a very cute boy with almost perfect hair that makes most girls fall for him. He is usually well hung.

"Oh my goodness I want my boyfriend to be like Kyser."

[Kyser] by Kreative January 14, 2015

kyser 

A boy with beautiful eyes and a mean little brother. Is crazy and loves nerf gun wars

Hey Kyser want to go play with nerf guns?

kyser by Taylyn07 March 11, 2018

Dirty kyser

The act of being so flexible you can suck your own dick

My gf isn’t home so I have to dirty kyser

Dirty kyser by The last cum bender 🙇🏿 April 3, 2023

mr. kyser 

A math teacher

Mr. Kyser is a math teacher

mr. kyser by Vcfhnhfc May 2, 2018

kiser smash 

When you’re teachers gets mad and is yelling at everyone and/or slamming everything

For example: A Door

Dude why did you make her mad? She’s gonna kiser smash all of us now!

kiser smash by Hola my G April 14, 2019

Koser 

Originated from the abbreviation KOS "Kill On Sight"

It's a word in online video games used to refer to people who are KOS.

It is more commonly used in the online game Roblox.

Dude, that koser just killed me for no reason.
The kosers are killing everyone.
i'm hackin all of you stopid kosers,

Koser by Mr.Koalas April 25, 2020

Kaser 

such a kind, generous person, who owns up to their shit 99% of the time.

"He's so nice to that person"
"He's a kaser"

Kaser by Coolaaron September 18, 2014