Read below to see the meanings of the slang expressions used in this video!
간지 is originally a Japanese word (Kanji / 感じ) that means "feeling", "style", or "atmosphere". In Korean, however, it is used as an expression for a "cool style" or to describe someone's "attractive look". When you see someone who is very fashionably dressed or has a very cool hair style, you can use this expression.
대박 means "awesome", "great", "killer", or "amazing". It is often used also when you're dumbfounded by a situation, but it can also be used to say "대박나세요" which means "I wish you great success!" This is used to wish someone good luck. The word "대박" is used a lot between friends and can also often be seen on advertisements. It is basically a noun and can be used with several verbs. "대박 + 이다 (to be)" means "to be awesome" and "대박 + 나다 (to come out)" means "to become successful" or "to be a hit (product)". Sometimes, however, 대박 can be used as an adverb, as in "대박 멋있다 (really cool)".
짱나 is short for "짜증 나" which is used to express annoyance when something does not go as well as you would like it to. When you are upset or annoyed, the emotion can be expressed with the word "짜증". The verb "나다" and its variation, "내다", are used along with "짜증" to give the full effect.
안습 is an internet term that is a combination of "안구", the medical term for eyeball, and "습기" which translates to "moisture" and is usually combined and used with "이다" meaning "to be." It is used in a joking manner to tease someone by saying "you look like you might cry" or "your behavior brings moisture, or tears to my eyes" after a regrettable or a sad situation occurs, much like the American slang use of the word "fail".
폐인 means someone who is either very lazy or leads a very unproductive and lazy lifestyle, usually not dressed properly, while not doing much work and not meeting many people. 초 is a word that emphasizes the word 폐인 which means "super" or "very". And even if you are not "living a lazy life", when you are not washed up or dressed well due to fatigue or busy schedule, therefore unstylish, you can describe yourself as a "폐인" or "초폐인". Young Korean students often say that they become 폐인 when they take school exams.