any of various long-tailed rodents similar to but larger than a mouse;
a pad (usually made of hair) worn as part of a woman''s coiffure;
one who reveals confidential information in return for money;
a person who is deemed to be despicable or contemptible; "only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes!"; "the British call a contemptible person a `git''";
someone who works (or provides workers) during a strike;
catch rats, especially with dogs;
give (hair) the appearance of being fuller by using a rat;
take the place of work of someone on strike;
employ scabs or strike breakers in;
desert one''s party or group of friends, for example, for one''s personal advantage;
