taking something said back, changing one's mind.
Gimme those Tim's ...Scratch that, I want those Phat ass Adidas instead.
forget that
me "mom can you buy me some coke?"
mom "..."
...later...
me "mom, scratch that, i want skittles."
Tattoos, especially old school prison tats.
Holmes, did you see the "Folsom Prison scratch" on that old biker? It was the shit!
In track, when a runner withdraws from a race before it begins. The term originated from the days when heat sheets were written on paper, and a runner's name would litterally be scratched off in pencil when he/she decided not to race.
I'm feeling tired today. I think I'm gonna run the mile, and scratch the 3000m.
Creating music by means of manually moving a record under a stylus. Typically seen in the musical genres of "House" and "Rap". See my Audio example.
What's a DJ if ya can't scratch?
With the same intention as cutting, except trying to avoid scarring. The scratcher will usually use something sharp to the touch but not pure metal, for example, a bobby pin without the plastic coating or a safety pin as opposed to a knife, scissors, razor, pencil sharpener blade, etc.
It's not cutting, it's scratching.