Originally bulls balls, and now also human looking scrotum hanging from underneath the back of a truck. Usually to remind followers that the truck is masculine. Different colors indicate subtle meanings added. Usually considered a redneck acroutrament.
Red truck nuts means the driver is on fire.
Blue truck nuts means he hasn't had any for a while.
Brown and Black truck nuts remind people of the ethnicity of the driver.
Pink truck nuts are for girls that arn't to be messed with, or just like you to know that their car is a boy.
Brass Truck nuts... well you know "he's got brass balls".
The new rage of truck accessories, originally bulls balls and now bigboys that look like human scrotum that is hung on the back of a truck. Usually to let people know the truck is masculine. Different colors add additional meanings.
"man, look at dem brass truck balls, don't mess with him."
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.
The original bulls balls that hang under the back of a truck, usually a redneck's add-on to remind people that the truck is masculine. Looks like a bulls scrotum. Also as a gag. Driver usually has a redneck horn on his dash too.
Fake urban car or truck accessory. Hung under the back of a truck or car simulating human scrotum. Usually small and cheap imitations of truck balls. Supposed to indicate a masculine truck, but really indicates a cheapscate, or a n00b is the owner. A put-down. Indicates a wanna-be, or someone trying to join the fad, but screwed up.