kakapužník
A stupid name you yell at people you don't like, like when you're too lazy to fight them but you still want to be annoying
He yelled 'kakapužník!' at me because I took the last slice of pizza and he didn't want to fight me.
She called me a kakapužník in front of the whole class, and I just said, 'Whatever, loser.'
He used 'kakapužník' in the group chat, and it was the worst thing anyone had ever said.