Dinosaur

A person with a very old type of mindset or personality that should have gone extinct or died out long ago.

Modern Day Barbarian guy: "ONLY STRONG PEOPLE SHOULD RULE! WAR IS GOOD, PROVES WHO IS STRONGER AND DESERVES TO RULE! PEACE IS FOR WEAK PEOPLE! STUPID WEAK POLICE, LAW AND THINKING SYSTEM!"

Civilized guy: Wow a dinosaur, I thought that this type of barbarian person should have died out long ago. An ancient times relic! Wow truly amazing! Don't hate on him guys, this type of species of person should have died out long ago!