Where do I start!
The Fake Goth or GOFF- an offshoot of the Punk or metal scene that varies little apart from going towards such group as Marylin mansion NIN, etc wearing large amounts of black and rebelling cos it looks cool (Ironic eh?)
the Gothic scene- I can only speak for the british scene personally but it seems to have come out of the post-punk movement in the late 70's early 80's going toward darker and heavier tones and feelings, e.g. Sisters of mercy, Siouxsie and the banshees, etc,
A Goth- a person who often has a twisted or cynical view on life, and sees the world as a dark, hopeless and i might say, morbid place, and revels in it, they are often interested in the arts particularly dating back to the 18/19th centuries and take a lot of their stle from that period (often for posh occaisons) but are still in touch with the modern day, stereotyped(is that a word) by black clothing, silver jewelry and makeup (both Genders) but the appearance does not matter when it comes to goths, it is their view on life and what they feel inside, that style of clothing is simply a common occurance
Goff: *to real goth* you fucking weirdo! I reject you you conformist, I reject you normal people!
Goth: *smirks, then sighs slightly and walks off*