A der der der der 

Umbridge (from A Very Potter Sequel) laughs like this.

A DER DER DER DER

A der der der der by UMBRIDGE WANT UR BAD ROMANCE January 3, 2011

a der 

expression showing the idiotic obviousness of a fact

the smurfs are blue
a der!!!!

a der by lisa June 10, 2006

a der 

a der is slang for giving head. Used in conversations where the parties describing the act use the word as a substitute for the actual word, usually in mixed company.

Scene: at a crowded party

Candi: Did you see Jonathon over there?

Cyndi: Sure, I just got done giving him a der in the bathroom.

a der by jack3684527 July 12, 2006

Diddle a der 

This is a generalized saying that can be used at the end of any sentence when trying to summarizing any explains. It gets addictive and you will find yourself using it more than you should. A great way to finish any sentence when you can't be bother explaining the whole story to others. Could also be spelt {Deddle a der}.

I went for a night out with the girls and it was like you know "Diddle a der". I picked the kids up from school then went to the shop then you know Diddle a der.

Diddle a der by Belinda Jane February 21, 2019