it is the equalivalint of sonofabitch, (son-of-a-bitch)
it's just a phase that you could use, so your pareantals, grandparents, aunts & uncels, ect.. won't punish you for saying it.
One time at school, I had slammed my hand in my locker door & I said : "SONOFABISQUICK!!" then the teacher that was near me just looked & laughed at me, so did my friends. :)