One that has a tooth or teeth covered with a Gold cap.
I went to the dentist and had a cavity, now I have a gold toof.
The Goldtoof is a new name catching on for the emo haircut.
Goldtoofs is the plural form of the word, or a group of people with the Goldtoof cut.
Goldtoof for males: Greasy, shaggy hair that hangs over the side of one's face, covering their desired eye in a side-bang type fashion. Almost always dyed black, sometimes with some streaks or tips (mostly red). Shines in the light, since it's extremely greasy due to them not washing it.
Goldtoof for females: Usually cut short, just above the shoulders. Almost always dyed black or dark brown. Tips and streaks are common. Many put their hair up in small pigtails, equipped with My Little Pony, Pokemon, Care Bear, or some other little kid's show hair ties. Side bangs also a common trait. Unlike the males, female emo kids usually wash their hair.