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1.
out of your mind. Many thoughts.
She was scatterbrain i tell ya!
by dwan November 15, 2003
 
2.
n. A person, usually female, that makes no goddamn sense at all; *thinks* she has her shit together; doesn't employ logic and takes rather irrational approaches toward problem solving; and commonly does dumb shit.
Her dreams to become a sniper in the Army, her belief that having posed in a third-rate porno mag qualifies her as a "model", and the fact that she once traded a telephone for a baby to a known scatterbrain all indicated to me that *she* is a scatterbrain.
by Bro May 13, 2004
 
3.
The add-on effects of being scattered. Mass congestion of lost axons in the brain due to copious drug consumption. Scatterbrain differs from being scattered in that thought processing is realistically unachievable and conversation comprehension is below that of a heavyweight boxer.
See also - Scat - (Diego)
Fresh-C, suffering from the symptoms of scatterbrain, had to do a glassy shift in at the R-ey, but the resultant jubilation of hooking up a root was hastidly polarised by the fact that 74 Schooner Glasses are now causing elderly vets to slip discs.
by Art Vandalay November 23, 2003
 
4.
Scatterbrain describes the neurological effects of negative, nonsensical and commercial bombardment on those living in "the age of videography". Symptoms include inability to distinguish quality from garbage. Those inflicted with the disease are sometimes called vidiots.
Turning on any TV network channel at prime time OR watching Most Popular "vids" on YouTube OR "cell phone shopping" in Trader Joe's will induce rapid onset of scatterbrain symptoms.
by Bob Kiger September 01, 2007
 
5.
To scatterbox

see defecate
Man Timmy, I really had to scatterbrain earlier when I woke up.
by Leif "The Face" Rancid January 03, 2004