tailgate has definitions from the field of transportation
1
[ noun ] a gate at the rear of a vehicle; can be lowered for loading

Synonyms

tailboard

Used in print

(T. C. McClary, "The Flooded Desert," Argosy,...)

He let_down the tailgate and was knocked_over by the sluice of water .

Related terms

gate truck beach_wagon

2
[ verb ] (transportation) follow at a dangerously close distance

Examples

"it is dangerous to tailgate another vehicle"

Related terms

follow tailgater

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