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."