1.) just something to say when bored and have nothing to say
2.) a response to when someone says something extremely obvious
2.) a response to when someone says something extremely obvious
by Bandaide July 27, 2005

Gary: "Did you guys know that the Alphabet Song and Twinkle, Twinkle Little Star have the same tune?!"
Stef: "Derp der on the der der!"
DJ: "Gary, sometimes I wonder why I hang out with you."
Stef: "Derp der on the der der!"
DJ: "Gary, sometimes I wonder why I hang out with you."
by deejinator27 May 14, 2013

by Nuke Broadcast November 29, 2005

by Ladychickann December 31, 2009

Pronounced Der-ta-der
1. A phrase meaning "how the fuck could you be so stupid"?
2. The sound you make when you are trying to make a point
3. What you do when someone is being an idiot.
1. A phrase meaning "how the fuck could you be so stupid"?
2. The sound you make when you are trying to make a point
3. What you do when someone is being an idiot.
by Seph Infinitium March 14, 2009

Interjection. When someone does something stupid, "der-de-der" is the appropriate respone to acknowledge said stupidity.
Verb, transitive. To have someone call you out with an interjection of "der de der"
Verb, transitive. To have someone call you out with an interjection of "der de der"
by MrMo April 3, 2007
