euphemism To urinate. A reference to the practice of pumping out water that accumulates in the bilges of nautical vessels. He stood up and mentioned discreetly that he needed to pump ship before exiting the room to find a water closet.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
pump shipurinate. euphemistic
The expression originated in nautical terminology, denoting the pumping of water from a ship's bilges.
Farlex Partner Idioms Dictionary © Farlex 2017
1. 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.
2. tv. to empty one’s stomach; to vomit. (Crude. Less well known than the previous sense.) After I pumped ship, I felt better.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.