|1.||don't flatter yourself|
a very annoying catch phrase, normally said by immature freshmen, that is used to down-play the fact that the speaker of the phrase isn't as good at something as they claim they are.
It is also used to annoy the crap out of everyone around them because the speaker could not think of something more intelligent to say.
Suraj: Did you just farticulate?
Mark: oh don't flatter yourself