A redneck truck accessory hung under the back of the truck that looks like a very large human scrotum. nutsack
Bigboys are hung to let people know the truck and/or driver is masculine. It is all the rage, and they can be seen on lorries and bigrigs, as well as tanks in Iraq. Mel Tilleson sports chromed bigboys on his CXT.
Bigboys are larger than bumper nuts and are seen in different colors and materials that are chosen for further meaning. See truck nuts.
"Those bigboys sure aint pingpong balls, that driver must be the real thing."
Prices shown in USD.
Log in with Facebook to save your favorite definitions
and share them with friends.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.