Frackled Unicorn
-noun
A person with the cerebral ineptitude of an inbred monkey's retarded offspring. Characterized by a complete lack of humour and the ability to understand the basics of civil conversation. Also a lack of understanding of concepts such as irony, symbolism, sarcasm and losing. Doomed to perpetually fail every attempt at human relations.
Dude 1: "Wow! What a great comeback! .... NOT!"
Dude 2: "Dude, quit being such a frackled unicorn. That's low, even for you."