Milkshakes

noun

1. A thick beverage consisting of milk and ice cream mixed together, often with fruit, chocolate, or other flavoring.
2. A thin beverage, similar to the above, but with no ice cream or significantly less of it.
3. A beverage consisting of fruit juice, water, and some milk, as served in Southeast Asia.
4. Accidental emulsion of oil and water in an engine.

   "This milkshake under the oil cap, or on the dipstick, indicates a blown head gasket."

5. An alkaline supplement administered to a horse to improve its racing performance.