A motor vehicle of poor quality, that is valued at or bellow $1000 and is driven on the annual "Shitbox Rally" through extremely remote and isolated areas of the Australian outback. The idea being that each team, of which there are 250, needs to find a Shitbox and prepare it for the Shitbox rally without spending more than $1000 on it.
Teams are also required to raise money for the Cancer Council. Since its inception in 2010, the Shitbox rally has grown to become the single largest fund raising event for the Cancer Council. The rally now raises in excess of $1,000,000 annually for the Cancer Council.
The people that take part in the Shitbox rally often refer to themselves as "Shitboxers".
Teams travel to Australia from all over the world to take part in the Shitbox Rally.

A vehicle that is an unfun EV pod or economy focused point A to point B driver. Japanese brands are perfect for adding the shitbox moniker to as they are slow and primarily driven by Boomers/misinformed Gen X drivers or bugmen incels who think they're Takumi from Initial D

A garage engineered, junkyard supercar.

i.e. a Hot Wheels Regular Treasure Hunt

Describes the cars in the Regular Treasure Hunt Series released by Hot Wheels.

1. A garbage ass car, either because it hasn't been properly taken care of or it just wasn't any good to begin with.
2. A woman's asshole.

Ford Ranger...

1. Shitbox is a colloquialism meaning "anal canal". However, although technically "shitbox" may be used as a direct substitute for "anal canal" it is in fact used almost exclusively when referring to the act of anal sex. Specifically one gets taken up the shitbox or one party takes a second party up the shitbox of the second party. It is worth noting that "Shitbox" is often shortened to shitter".

2. Due to the social unacceptance of anal sex in polite society a secondary derived meaning of shitbox is "very bad".

Unsurprisingly the term is derogatory and used mainly by male virgins in the company of their peers during puberty when discussing their as yet unactualised sexual desires and fantasies.

Especially popular in Kent in the mid 1990's "taken up the shitbox" rose to become the favourite phrase of the sixthform boys of Chatham house boys grammar school in Ramsgate, Kent in the years 1996-8.

Crap car usually of poor quality and value with a dodgy number plate to match.

Driven by blokes that think they are better than everyone else, normally called Sam

Substitute for any noun that is to the displeasure of the sayer.