[/sarcasm]

Usually used in message boards to denote that the statement you have just posted has a sarcastic tone. Comes from HTML code.

Wow, you are the best because you have a high post count./sarcasm

[/sarcasm] by Porn-O's June 11, 2006

sarcasm 

saying something ironically

saying the opposite of what you mean in a jokingly "as a matter of fact" tone

From Disney's The Lion King 1 1/2

(after trying to break up Simba and Nala)
Timon: Well, that worked like a dream.
Pumbaa: It did?
Timon: Sarcasm is a foreign language to you, isn't it?

sarcasm by Zippitydoodah June 18, 2008

Sarcasm 

When one or more sexual participants openly fake orgasm such as to mock the efforts of the other sexual participant(s).

Marie: 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGH, MICHAEL! MICHAEL! MICHAEL! MICHAEL!' (exaggerated body writhing, breathing and excessive slamming of nearby surfaces ensues, stopping very suddenly with a look of spiteful derision).

Michael: That's my third Sarcasm this month!

Sarcasm by DonPasquale March 21, 2013

Sarcasm 

The brain's natural defence against the less intelligent.

Idiot: duDE! i just won the loudest person award :0
Not an Idiot: Wow, thats really impressive. (with sarcasm)
Idiot: yEah it iS!!

Sarcasm by Anonymous Sandu January 11, 2019

Sarcasm 

Telling people that they’re stupid without actually telling them.

Kid: “So mom, who’s going to pick me up from school today?”
Mom: “You’re gonna get into the white van where the nice man will give you candy”
Kid: “REALLY? SMANSKBSKDHDJDH-”
Mom: “I’m using sarcasm you idiot!”

Sarcasm by n00bsl4yer_6000 November 9, 2019

sarcasm 

the highest form of wit in most countries like the uk, but regarded as lowest in america as americans have trouble under standing when your are being sarcastic or not. the art of stating a sentance but meaning the exact opposite.

unsuspecting american: hey i see you got shot down there. how you doing?

british guy: oh great, fucking GREAT! IFLML!

unsuspecting american: oh ok see u l8r *walks off*

British guy: DAMN IT! SARCASM!

sarcasm by the_random_user1 June 7, 2009

Sarcasm 

Half of the entries on Urban Dictionary.

*Looking up sex on Urban Dictionary*: Who is stupid enough to look up sex in the Urban Dictionary?

*Looking up Mormon in the Urban Dictionary*:95% of the people in Utah.

These are all sarcasm.

Sarcasm by funnyman21224 July 8, 2011