A person who is generally obnoxious and annoying who thinks that he/she can do whatever they want. Often times these people are from Texas or the south and wear cowboy boots, drive big trucks, or dress in pastels and wear croakies. When a gooshbaux crosses your path often times the only thing that keeps you from punching them in the face is the fact that they are either compensating for their tiny cocks, or hate their daddies.
Fred- "Fuck that gooshbaux!"
Fred- "That no good Texan gooshbaux in the red F650 that just cut me off!"