noun A hinged flap at the back of a truck that can be lowered or removed when loading or unloading the vehicle. (The android made slow progress, and she was impatient, so she went outside to the truck and lowered its tailgate.) Denoting a style of jazz trombone playing characterized by improvisation in the manner of the early New Orleans musicians. (Rosy's C-Melody sax beautifully sets the scene, but when Schneider takes over it becomes a deft execution of robust slide trombone at its tailgate best.)
verb Drive too closely behind (another vehicle) Host or attend a social gathering at which an informal meal is served from the back of a parked vehicle, typically in the parking lot of a sports stadium.