Joschka means in slang: You are the best person you can meet. Everyone loves you. Be kind to all. Sometimes can get angry at people. Sometimes, overreacts. Loves irony. Even if it isn’t necessary, I will always make dumb or bad jokes. Loves dark humor. He’s a bit eccentric, but it’s his uniqueness that makes him special and complete in his own ways. (in Slang Dictionary, added by Miguel Combs)