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1.
Coming down off drugs -- the day after a powerful drug experience.
Man, the only thing that helps on scat day is more drugs.
by fell in a hoooooole September 23, 2006
 
2.
Its like a Sunday, but you are too scattered from a weekend of drug-taking (stimulants) to notice it in its entirity.
Doesn't have to be a Sunday.
Its was Scat-Day and Tom had to go back to his mums house. I'm glad I can stay at home getting fucked, forcing scat-day to never exist.
by Diego November 21, 2003