A fart. So named because you blame the resulting smell and sound on the fictitious spider. Most often referenced as being stepped onwhen the term is used.
*fart noise*
(pause)
Innocent Bystander: "Oh man, what is that smell?; Did you fart?"
Guilty Party: "Ah, no, man, You must have stepped on a barking skunk spider"
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".