the word when someone says something obvious
that chicks hot, well der!!
by Steve-O April 24, 2003
scandinavian. short for the name Anders.

also the best guy ever. <3 end of story
by kickasskoalax3 August 27, 2008
Used to simplify such expressions as:
"No Shit!"
"Whatever!"
"Really?!"
Der, I think I know how to be bling-blingin'it up!
a messed up way of saying "there boy", which is thought to be a saying from the east coast of Canada, but has not been proven as of yet.
person one: Hey man whats up?
person two: O hey der by! just raking some seaweed, you?
person one: what in the hell did you just say?
by seaweed man February 26, 2011
expression showing the idiotic obviousness of a fact
the smurfs are blue
a der!!!!
by lisa November 12, 2003
Verb: To flake because of a birthday party
Andrew is pulling a Ders. He has a birthday party every weekend.
by Too Many Bdays July 21, 2015