Definitions by Jesse J.,.,

lol jk 

The most popular abbreviations used on the internet.

Girl: Wow, you are so ugly!
Guy: Ouch :(
Girl: lol jk !!

lol jk by Jesse J.,., June 20, 2008

frown 

Commonly seen in pictures of Emo people.

Turn it upside down!
RIGHT NOW!

Guy- Turn that frown upside down!
Guy #2- Fuck off!

frown by Jesse J.,., June 20, 2008