to be brash and insensitive to another. to put your own interests above all else. to act like a penis.

someone who is sexy beyond mean

A description of behavior of acting like a complete dick towards another human being with or without justification.

To act in such a way that confirms the popular presupposition that someone is a dick.

Dickish behaviour is synonymous with acting like a complete cunt.

Slang;

Pronunciation:dik-‘ish

A generic use of the proper word

adjective;A description of the improper use of the word (dick) acting as a dick would. ie: spouting or discharging grossly without thinking!

To Act So Obnoxious And Rude That Your Own Friends Avoid Inviting You Anywhere, To Act Like An Ass or Jerk In Front Of People. To Just Be You If Your A DickHead. FourHorsemenStudio

An act of rudeness towards a person.

Used commonly to define an intentional act of rudeness.