Korean and Kpop culture is so different then what we are used to in America. Here are a few things that will help you understand Kpop and what you are watching and hearing.
Maknae – Maknae is a common Korean term used by older people, generally young adults, to refer to the youngest in a group. Usually a group of friends. It’s often used as a title in place of their name. – via Urban Dictionary
Hyung – Hyung is a word used by korean males to adress another male older than them who they are close to. Hyung literally means “older brother”. The female version of this word is oppa. – via Urban Dictionary
Oppa – Oppa is a word used by korean females to address male older than them who they are close to (biological or not). It’s often used in a romantic relationship when a girl refers to her boyfriend (or the girl hitting on a guy) who is older/same age as her. Oppa literally means “older brother” – via Urban Dictionary
Unnie – A Korean term that means older/big sister that females call a female relative or a older girl they a admire or respect. It is sometimes used as a honorific or to replace a person’s name. – via Urban Dictionary
Fan Service – Originally used in manga and anime fandoms, fan service refers to the lengths KPop artists would do to titillate their fans. Showing off their chocolate abs is a good example, but having their male co-singer caress all over is a step up. – via A Buzzfeed article… it was the best def I found
Shipping – A term used to describe fan fictions that take previously created characters and put them as a pair. It usually refers to romantic relationships, but it can refer platonic ones as well. (Just think of “shipping” as short for “relationSHIP”.) – via Urban Dictionary
Nyongtory/Nyongtori/GRi – Ship made up of G Dragon and Seungri from Bigbang. B and T’s only real ship… because we believe. Just be happy boys! You be you. These Ajumma’s won’t care. lol