Kyun is a delinquent person but no worries as long as you are kind to him, then you are good. He might as well be friends with you. He might be a delinquent but he gets shy sometimes... I know he is complicated but trust me... he is a good person also a bitcorny.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).