1. My absolute favorite kind of comeback for any type of insult.

2. Saying the exact opposite of what you really mean, to show emphasis.
1. Person : Hey, what did you get on that biology test? I bet i got higher!
Me : You sure you wanna make that claim when your score's an 85?
Person : Whatever dude, you just wish you could be me.
Me (being sarcastic): Yeah, I'd just love to never have another girl hit on me as long as i live.

2. Mom : Here's your arranged marriage son, Isn't she pretty?
Son (being sarcastic): Yeah! Why dont you go pick up the ugliest hog on the streets and I'll marry THAT.
by Quizzical November 28, 2006
Archibald: "That's beautiful dress Marge."
Marge: "Well tha..."
Archibald: "... I sarcast."
by buffalo.soldiers March 16, 2009
"For use of those who cant remember of the word sarcasm"
"I dunno whether i should be insulted or flattered!"

"Flattered, there was no sarcasticness in that statement"
by Jason and Laura March 22, 2006
The act of being syrupy sweet and condescending to someone that is extrememly pissed off, usually resulting in the person getting even more pissed off. Useful when working in retail.
The more pissed off she got at me, the more sarcastic I got with her.
by LaDeena July 4, 2009