Definitions from Wiktionary ( )

▸ noun:  (automotive) A hinged board or hatch at the rear of a vehicle that can be lowered for loading and unloading.
▸ noun:  (British) The hinged rear door of a hatchback.
▸ noun:  Either of the downstream gates in a canal lock.
▸ noun:  (mining) A tunnel for drawing spent air away from the working face of a mine.
▸ verb:  (automotive, intransitive, transitive) To drive dangerously close behind another vehicle.
▸ verb:  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.
▸ verb:  (finance, of a broker) To privately purchase or sell a security immediately after trading in the same security for a client.
▸ verb:  (US, intransitive) To have a tailgate party.
▸ noun:  Synonym of Monicagate
▸ noun:  (US) Ellipsis of tailgate party. [A celebration, held in a parking lot, with picnic food served out of the back of automobiles or pickup trucks; usually held at sporting events.]

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