why so serious?

A very popular tagline for the movie "The Dark Knight". The phrase has achieved a level of popularity, earning it spots as an internet meme, several XBOX Live account names, and something for 13 year olds to put in their signatures on forums to be scary and angsty.

By the year 2018, this will be the new "Where's the Beef?!"

20 Years After the Dark Knight...

Person 1: Remember that dumbass who got "why so serious?" tattooed on his shoulder?

Person 2: Yeah, what a dork.

by gamegenie2k July 26, 2009

serious as a heart attack

To show that you are serious, and not joking.

Person A: Did you hear that Gordo is gay!
Person B: No way, are you serious?
Person A: I'm as serious as a heart attack!

by AndrewMartini June 23, 2008

something serious

Something or someone that is TOP NOTCH like A1 status .

Damn , did you see him ; he was "something serious" !

by JazzyJenae April 6, 2014

seriousity

(n); the act of being serious

Your lack of seriousity in this issue is disturbing.

by Ins0mn* March 30, 2005

seriousness

Noun form of adjective serious

When she spoke to the crowd, her tone was one of seriousness.

His face showed intensity and seriousness as he strove to define "seriousness."

by Bill Foecke October 9, 2003

for seriously

Often used to show excitment with underlining uncertainty.

Person 1: I had a car crash, but no one was hurt
Person 2: For seriously?!!

by textfile232 January 18, 2006

seducious

A combination of seductive and luscious.

As her fingers streamed down his tight chest, his seducious lips met hers.

by Parislips May 23, 2011