n any of various long-tailed rodents similar to but larger than a mouse
n someone who works (or provides workers) during a strike
n a person who is deemed to be despicable or contemptible
n one who reveals confidential information in return for money
n a pad (usually made of hair) worn as part of a woman's coiffure
v desert one's party or group of friends, for example, for one's personal advantage
v employ scabs or strike breakers in
v take the place of work of someone on strike
v give (hair) the appearance of being fuller by using a rat
v catch rats, especially with dogs
v give away information about somebody