When spoken with the correct inflection it successfully embodies irony, disbelief and condescension. The sarcastic tone is key to capturing the true wit. Reference Weekend Update (with Seth and Amy) on the January 20, 2007, episode of SNL for the proper delivery technique.
matthew: We look good, people need to see us.
A Sarcastic way of replying to a situation or statement by another person. Taken from the SNL news skit by the name, REALLY!?! with Seth and Amy.
"An honorary degree from Arizona State is like getting an 'I Love Dad coffee mug' Does it really mean that much?" REALLY!!!
Dude, it's 70 degrees, do you really need a jacket? REALLY!?!