defined as a person who is being sketchily skanky. As in being a whore when no one is looking or can also describe a female wearing extremely inapprope attire to an event. (can also be used in the singular term of scantch) or used to describe an event of massive scantchiness - scantchfest
"Lucy was being a total scantch on the dancefloor with Sarah's BF"
"Katie's outfit was straight scantchy, i am surprised people didnt offer her money."
another word for sketchy, but it's only used when you find out that your boyfriend is cheating on you, or want's to with your friends ex girlfriend of less than two weeks.
lucas was pretty skanchy when his girlfriend found out that he wanted to fuck beth, freddie's ex girlfriend.