skim

verb (used with object), skimmed, skim·ming.

1. to take up or remove (floating matter) from the surface of a liquid, as with a spoon or ladle: to skim the cream from milk.
2. to clear (liquid) thus: to skim milk.
3. to move or glide lightly over or along (a surface, as of water): The sailboat skimmed the lake.
4. to throw in a smooth, gliding path over or near a surface, or so as to bounce or ricochet along a surface: to skim a stone across the lake.
5. to read, study, consider, treat, etc., in a superficial or cursory manner.
6. to cover, as a liquid, with a thin film or layer: Ice skimmed the lake at night.
7. to take the best or most available parts or items from: Bargain hunters skimmed the flea markets early in the morning.
8. to take (the best or most available parts or items) from something: The real bargains had been skimmed by early shoppers.
9. Metallurgy. to remove (slag, scum, or dross) from the surface of molten metal.
10. Slang.
    1. to conceal a portion of (winnings, earnings, etc.) in order to avoid paying income taxes, commissions, or the like on the actual total revenue (sometimes followed by off): The casino skimmed two million a year.
    2. to take, remove, or appropriate for illegal use: to skim information from another’s credit card.