A male version of a chicken head. They don't know how to act, so they tend to act foolish.
Why are you talking to that boy? He's trippin, he is a dundahead.
โดย Laughing Like Crazy 22 กรกฎาคม 2010
It literally means 'dickhead'. It comes from 'dunda' meaning 'penis' in most Indian languages. Not to be confused with the Scottish 'dunderhead' which means stupid.
Donald Trump is such a dundahead.
โดย Vajayjay Petal 16 มีนาคม 2016