1. A greeting to say whats up
2. A greeting to say how is your day 3. A saying to say killer, sweet or dude
4. Scratchin can be used to say a combination of the three above.
Scratchin was first heard at Peets coffee in Concord, CA, it was said by some punk kid as a greeting.
Robin: Hey whats up
Punk Kid: Whats scratchin
Robin: nothing much
Robin: What's good?
Punk Kid 2: OMFG I had a scratchin day!
Robin: Sweet!
1: Verb; The female equivalent of "Jerkin' Off" where the woman takes a set number of fingers and proceeds to rub at her vagina profusely for sexual pleasure.
2: Verb; When a man or woman begins to itch his/her junk, and it feels so good that they either jizz themselves almost immediately, or they continue to masturbate following the relief of the itch.
Ex. 1: I just walked in on my sister scratchin' off like a lotto ticket.
Ex. 2: I jizzed myself when I finally scratched off to this itch I had for an hour.