간지난다: this expression is from Japanese word '感じ'. but a bit different meaning. it means 'looking great, stunning, outstanding', similar word for korean '간지다', similar slang but more cheap expression, so dont use it '뽕빨난다'
가) 오, 저 줄무늬 티셔츠 간지난다. : oh, that stripe patterned T shirt looks so cool.
나) 간지남: guy who has great style, cf.훈남(훈훈한 남자): guy who makes other people feel warm(means he looks so great, so he makes other people feel great cuz of his being)
2)쩐다: means something or some action is too strong, extreme, or someone is so good at something. it's from '절다' which means 'be salted or seasoned and so on', so it became fortis '쩔다(술에 쩔다, 소금에 쩔다)'
가) 레알 쩐다: really shocking. or really horrible, or really great job. and so on. 레알(real)
나) 입냄새 쩐다: has a terrible bad breath!!!
다) 와, 저 축구 선수 쩐다 : wow, that soccer player is great at what he's doing.
3)깝치다: is same as 깝죽거리다. it became famous word because of 조권 in 2AM, so we call him 깝권(깝치는 조권). 깝죽거리다(깝치다) means acting so silly(frivolously, flippantly) with excitement. Did you see 조권's 깝 dance? very silly and funny. that's the word for '깝치다'
4)센스: 센스있다(very sensible to notice or do something), 센스없다(oppisite from 센스없다)