What is "trailer hitch"

n. A hitch used to draw a trailer with a car or a traction engine.

"Trailer Hitch" is a song co-written and recorded by American country music artist Kristian Bush, one half of the duo Sugarland. It was released on July 28, 2014 as Bush's first solo single and the lead single from his debut solo album, Southern Gravity. Bush co-wrote the song with his brother, Brandon Bush, and Tim Owens.