flabknocked 

when someone is so flabbergasted that they kill you with a singular strike to the noggin

"kris was so flabbergasted that he flabknocked the heck outta his coworker

flabknocked by mistercoolguythesauve6900 March 24, 2023

Flibknocker 

Someone who engages in faggy video games. Especially those with cringe followings
(Omori, Danganronpa, Persona, genshin, etc...)

"he's playing Omori, what an absolute Flibknocker"

Flibknocker by AERO-Lithium April 26, 2022

flatknocker 

a lesbian girl who enjoys taking her vagina and knock it on other vaginaes.

Hey, does your sister have a boyfriend? No, she is dating woman, shes a flatknocker.

flatknocker by Aasmund March 28, 2007