kakapužník - A stupid way to insult people, like when you're too lazy to

A stupid way to insult people, like when you're too lazy to think of anything else and just throw that word at them

He called me a kakapužník in the hallway because he was too lazy to think of anything else.

I said 'kakapužník!' to her during the test, and she just rolled her eyes and kept working.

He used 'kakapužník' in the group chat, and it was the worst thing anyone had ever said.