A Fields/Campbell is an absolute Bad Ass with capital B and A. Typically you'll find them doing super bad ass shit like, out drinking everyone at a party, clapping asses in beer pong and corn hole, driving Corvettes and nasty lifted diesels. A Fields/Campbell will steal your girl and leave her stranded in the gutter before the night is over. They are true Girbronis, and if you ever come across one, don't be surprised if they wax your ass at whatever it is you're challenging them to. They aren't much for shit talk, and will knock your front teeth out before you finish your punk ass sentence.
"Bro, those 2 guys just showed up, drank all our boose, clapped everyone's ass at beer pong, and left with our girls, wtf."
"Damn, must've been a couple of real Fields/Campbells"