A word used to define a buddy, pal or friend. Said at the end of a sentence, usually said with stress on the "der". Most commonly used in private prep schools.
by KtK & AC June 24, 2006
by Rachel Manwhore June 19, 2006
A word used by a group of people who think they have started a fad, but have completely overestimated the popularity of its use and really just annoy the crap out of everyone.
by lolstfu November 08, 2006
by Zac Deluca August 06, 2007