from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hinged board or closure at the rear of a vehicle, such as a pick-up truck, that can be lowered during loading and unloading. Also called tailboard.
- n. One of the pair of gates downstream in a canal lock.
- transitive v. To drive so closely behind (another vehicle) that one cannot stop or swerve with ease in an emergency.
- transitive v. Slang To follow closely behind (another person), as in gaining access to an area requiring the use of an electronic identification card.
- intransitive v. To follow another vehicle too closely.
- intransitive v. To participate in a picnic that is served from the tailgate of a vehicle, as before a sports event.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hinged board or hatch at the rear of a vehicle that can be lowered for loading and unloading; a tailboard.
- n. The hinged rear door of a hatchback.
- n. Either of the downstream gates in a canal lock.
- v. To drive dangerously close behind another vehicle
- v. To follow another person through access control on their access, rather than on one’s own credentials. Especially when entering a door controlled by a card reader.
- v. (of a broker) To privately purchase or sell a security immediately after trading in the same security for a client.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a gate at the rear of a vehicle; can be lowered for loading
- v. follow at a dangerously close distance
From tail + gate. (Wiktionary)