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1.
-One who is chief of all that is dunder. Commonly confused with the song Dirty Deeds.
-A persona created for one who commits many dirty deeds.
Dunder chief, what are some of the dirty deeds you have performed?
Why are you so dirty Dunder Chief?
by Dunder Chief 1111 January 07, 2011
 
2.
A derogatory but not quite outright insulting term for someone lacking in intelligence.
That Lucy's a sweet girl but she can't half be a dunderchief at times
by license4crackhead October 08, 2009