Found 5 variants for this sign (click on video to enlarge):
1. The action of scooping something off the top of something and discarding it, or any thing or any action that can be easily associated with this in a given context.
As a Verb or Adjective
1. To remove the top layer off a liquid. English = skim.
1. There appears to be no commonly used Auslan sign for SKIM (but some signers represent this visually using these depicting signs, once they have established the topic). If you know a sign for SKIM used by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.