다굴
= 왕따

닥쳐
Shut (da hell) up

단세포 (a unicellular animal)
a simple-minded person

단순빵
a simple-minded person

담탱이
A teeny word for 담임 선생님, a homeroom teacher

당근 + 이다
Yeah!  Of course!

대가리
A derog term for the head

대딩
a uni student

대박 + 터지다
To yield a big luck, to hit the jackpot

대타
to pinch-hit, to fill in for someone
E.g.  대타해줘.  Fill in for me.

대빵
A lot, very (= 열라)

돌다
to turn mad, lunatic or insane
E.g.  돌았냐?  Are you out of your mind?

돌대가리
A retard, a moron

돗대
Last cigarette left in the packet which you will inevitably hold sacred, if you're a smoker.

동네북
A weak individual who is regularly abused physically by others, a doormat

된장/ 덴장
= 젠장
fuck it!

뒈져
Go to hell

뒤땅 + 까다
to gossip, to backbite

뒷북
an unaware, thickheaded or dull person

디따
a general intensifier; a lot, really