| wash sale | |
| —n | |
| (US) the illegal stock-exchange practice of buying and selling the same securities at an inflated price through a colluding broker to give the impression that the security has a strong market | |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a fool or simpleton; ninny. |