sidewinder

noun

1. 1.A North American rattlesnake, Crotalus cerastes, that inhabits lowland deserts.
2. 2.A person who is untrustworthy and dangerous.
3. 3.A heavy swinging blow from the side which disables an adversary.
4. 4.A pitcher who throws sidearm.
5. 5.A type of middle-distance deep-sea trawler widely used during the 1960s and 1970s.