1.the persone you gank marijuana off of, or one who holds it for you.
2.someone dumb enough to do whatever you tell them, and therefore subject to your every whim.
"we're gonna stop at 72 before we head back to my roof... Nick's my doobitch."
"ha! what a pathetic doobitch, man!"
"that pork doobitch killed my buzz."
Someone who embraces the whims of pot heads who light up on their dance dance revolution floor.
That doobitch best let me light up some of my pizot on this mat, cause then we gonna make like a fetus and break outa this mutha.