Someone who gets stuff done. Obviously.

when you're hungover as shit after a spending a night drunk as a skunk

A doer is a person who has a seemingly impossible idea and persists until the idea is fully actualized. Doers cannot help but make others around them feel woefully incapable and lacking of the amazing creativity of said doer. Often non-doers live vicariously through doers. Being 'hunka-ed' is what happens when a doer hatches and actualizes an impossible plan.

A person who acts accordingly to what is should be done, completed. A person who's willing to make it better. A person who makes it real.

1. Two people (or any other creatures capable of having sex) that often engage in the act of sexual intercourse with each other.

Originating from a conversation on bullshit feminist literature (The Awakening, A Doll's House) in Ms. Winkle's 3rd period AP Literature class on Thursday, January 19th, 2012, between Alec Luis and Raamis Hussein.

2. Uptight people who get shit done...

Used By Canadians, especially in the area of Niagara, to describe a smoking apparatus used for smoking pot. And yes, it is as Retarded as it sounds.

A doer is somebody that you would have sex with.

Background: People used to commonly refer to the sex act as "doing it." Then they'd say things like, "I did her," "I'm gonna do him tonight," Etc. Hence someone that you would or could do, is a doer.