A general term referring to the awareness of fall being in the air; also, an unspeakable association alluding to the fall / autumn season.
Similar to Americana in the way that one cherishes all things Halloween and of autumn. For example, seeing Halloween decorations in Dollar Stores and Wal-Mart in September, noticing the changing of leaves color, watching scary movies, going to Halloween parties, et cetera.
Unfortunately, Halloween(icana) is usually quickly overshadowed by the concentration of the unbelievably marketable and commercial Christmas.
Joe: Mark, summer isnt over yet...its only August 29th, why do you have Halloween decorations on your house already?
Mark: Fuck you man, Ive got a serious case of Halloweenicana!
A formula which can be applied in order to make any Halloween costume, regardless of how plain or innocent, slutty enough to be given the "sexy" title by the Halloween costume industry. The formula, from the shoes up, goes as follows: fuck-me pumps or heels, stockings, a short skirt or booty shorts, and a top to indicate what the wearer is supposed to be dressed as. Accessories are optional.
To make a sexy police officer costume, we can apply the slutty women's Halloween costume formula: black fuck-me pumps, fishnet stockings, a blue miniskirt, and a blue button-up blouse with a police badge.
To make a sexy maid: black fuck-me heels, black stockings, black miniskirt, and a white apron.
Making out with a girl on the dance floor while three and a half knuckles deep into her pussy while making eye contact with the guys who brought her to the party.
Chad: Hey bro did you fuck that chick last night?
Adam: Nah bro, I was giving her the ole Halloween O’Sullivan and made her cum so hard for so long that she passed out on the dancefloor.