klapviool 

combination of klaploper (dutch) and klootviool (dutch)
invented by Lars

example 1: Opzouten klapviool! (Fuck off)
example 2: je bent echt een klapviool! (You are a twat)

klapviool by Grote Negert March 22, 2018

Kaasviool 

A violin made of cheese. Can also be used as a curse word if you do something stupid. You can compare it with patatohead.

"Jij bent echt eenkaasviool!"

"In this musicshop, they don't have any kaasviools."

Kaasviool by KAASVIOOL August 12, 2019

Kaasviool 

Dutch word for a violin made of cheese. Can also be used as a curse word for people who did something stupid. You can compare it with patatohead.

"I walkes into a wall" "oh god you're such a kaasviool"

Kaasviool by KAASVIOOL August 14, 2019