sleeper

Definitions

• Someone who sleeps.
• That which lies dormant, as a law.
• A spy, saboteur, or terrorist who lives unobtrusively in a community until activated by a prearranged signal; may be part of a sleeper cell.
• A small starter earring, worn to prevent a piercing from closing.
• A railway sleeping car.
• (martial arts) A sleeper hold.
• Something that achieves unexpected success after an interval of time.
• A goby-like bottom-feeding freshwater fish of the family .
• A nurse shark (family ).
• A type of pajama for a person, especially a child, that covers the whole body, including the feet.
• (slang) An automobile which has been internally modified to excess, while retaining a mostly stock appearance in order to fool opponents in a drag race, or to avoid the attention of the police.
• (slang) A sedative.