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

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.

Someone who is being stubborn or very annoying.

a bad thing that you do. As a result of doing a bad thing that causes you to be called a dick.