Aboot ShaDynasty

ShaDynasty is a female name, commonly mispronounced “Shady Nasty”.

Also good to know is the following. 

Shakotan: a shakotan car, also known as a low down style car, refers to a style of zokusha (gang car).

Dynasty: a sequence of rulers from the same family.

Shady: of doubtful honesty or legality.

Nasty: bad or unpleasant, especially to the senses.

All together now,

ShaDynasty: A Gang of low down cars, of the same ruling family, with dubious intent, assaulting the senses!