skim off

British  

verb

1. (tr, adverb) to take the best part of

   the teacher skimmed off the able pupils for his class

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Example Sentences

Bring to a simmer, skimming off any foam that rises to the surface.

From Seattle Times

Subsequent chilling makes excess fat easier to skim off; the salt level’s gotten just right.

From Seattle Times

Add the garlic to the pot, along with the bay leaves, chiles and 1 teaspoon of the salt; bring the water to a boil; and boil for a few minutes, skimming off the rising foam.

From Seattle Times

In creating a digital double, information about a person is skimmed off social media sites and publicly available records in a massive data collection effort, and stored in the software.

From Seattle Times

In addition, the government plans to make it easier to skim off the benefits that companies gain from antitrust violations.

From Reuters