What is a Doobie and how do i roll one?

I have heard the phrase and seen them on TV but have never smoked one? is it just a mini blunt or is there some trick to it? Also is there a guide to rolling one if it isn't just a mini blunt.

Thanks for your help.

 

It's just a regular joint.

 

Look on youtube, there's instructional videos there. Or, search the forums as this topic has been asked before.

 

its a joint my brother

 

a doobie is a wondrous smoking utensil in which happiness is achieved through the inhalation of a mysterious and mystical white cloud.

 

lolohahaolol

 

a doobie is a machine, in a way

 

i make the machines