자지
A penis

잘난척
To brag, to boast

잠수하다
To disappear or go silent without any notice on internet chat.
The literal meaning of the word is to dive.
Ex. 잠수 그만해여.

잠지
female genitalia

장난하다 (장난해?/ 장난하냐?)
You think this is a joke?  Huh?  Shut da feck up.
E.g.  씹쌔들이 장난하나..

재수없다
(adj) bitchy
c.f. 싸가지없다

제기랄
(excl.) Shit!, fuck!, damn! (less stronger than 씨발/씨팔)

젠장
(excl.) shit, for fuck's sake, fuck it

조센징
A derogatory Japanese term for Korean

조폭
A shortened term for 조직 폭력배, a member of a gang of violent criminals, a mobster

존나
= 좆나
an intensifier; fucking, bloody
E.g.  좆나 어려워.  It was so fucking difficult.

졸라
= 좆나
an intensifier; fucking, bloody
E.g.  좆나 어려워.  It was so fucking difficult.

좆
A penis

좆구리다
Sucks
c.f. 구리다
좆구리다 is somewhat stronger than 구리다.

좆까/ 좆까라
Fuck you, fuck off

좆나(게) / 존나(게)/ 좆까(게)
an intensifier; fucking, bloody
E.g.  좆나 어려워.  It was so fucking difficult.