tailgate
noun
the board or gate at the back of a wagon, truck, station wagon, etc., which can be removed or let down for convenience in loading or unloading.
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Cesar Perez and his wife have been tailgating at the home opener for more than a decade.
From Los Angeles Times ● Apr. 7, 2015