Detoxing from any drug, but especially alcohol. The mentally and physically uncomfortable (and potentially fatal) withdrawal process which accompanies ceasing the use of one's drug of
choice on one's own, i.e. without medical assistance.
"Shaking" refers to the "tremors" (shaking uncontrollably) which accompany this process.
"The Doom" refers any and/or all of the following: 1) the consistent and
delusional feeling that something horrible and unstoppable is on the verge of occuring; 2) the "shadows", i.e. visual hallucinations which are the result of "delirium tremens" and/or
insomnia; 3) the existential dread, terror, and regret concerning the very real possibility of
death from withdrawal; and/or the
intense nausea which causes one to be unable to "keep anything down."
Shaking off the Doom does not necessarily incapacitate, in that someone could, for example, still go to school or
work while being in the process of it. Oftentimes, however, it is, temporarily, physically and mentally crippling. The Doom is shaken off when one is able to resume normal functioning.
Person 1: "Are you ok? You look like
death!"
Person 2: "Yeah, I'm just shaking off the Doom. I've been drinking
hard for three weeks straight, but
ran outta money and booze."