tv. to urinate. (Crude. From an expression meaning to pump the bilge water from a ship.) : He stopped and pumped ship right in the alley.
tv. to empty one's stomach; to vomit. (Crude. Less well known than the previous sense.) : After I pumped ship, I felt better.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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