▸ noun
1 a hinged flap at the back of a truck that can be lowered or removed when loading or unloading the vehicle.
▪ the door at the back of an estate or hatchback car.
▪ North American English a social event held in a car park, typically before a sporting event or concert, at which refreshments are served from the back of a parked vehicle; a tailgate party:
here's a quick and easy recipe for your next tailgate
[as modifier] a tailgate picnic.
2 [as modifier] denoting a style of jazz trombone playing characterized by improvisation in the manner of the early New Orleans musicians.
▸ verb informal