1 - Someone who treats people unfairly for little or no reason.

2 - Person with a penis on their head.
Lubie: Dude, Anthony's such a dickhead.
Badass: I know dude.
by Lubie47 May 04, 2009
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A group of people who profiteer during a pandemic and buy up all the supplies of hand sanitiser and food, then proceed to sell it at extortionate prices on various online sales outlets. A petition has been set up to name and shame these DICKHEADS!
Look at these DICKHEADS with a trolleys full of toilet roll and sanitiser!!! Scratch their car with you're keys!!! No, take a pic of the REG plate and post it online!!!!
by TheCorrectKnowledge March 29, 2020
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Any person who is always right, and when questioned will come back with something witty that will make you sound so stupid, you will never want to challange again. Personal subjects will be thrown out there, and tears usually follow. Will constantly point out your negatives and will just generally make you feel worse about yourself. This person is usually very good at comebacks and will not take offense to anything.
Person to dickhead: "Are you going to the bar tonight?"
Dickhead response: "Maybe, maybe not, maybe fuckyourself"
by gotti3016 September 17, 2008
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why would you perform an act of such great dickheadism?
by Jesswa October 09, 2006
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