To mean a regular occurrence or thing that is familiar to you, your friends or your family. Something that is characteristic of the thing or occurrence in question.
"Oh I hate fog"
"Well where I'm from it's a staple in my dads newspaper"
"Getting roasted by your mates it's just a staple in my dads newspaper"
A child who's farther is a lawyer. This child is usually stuck up, posh and rich. The child is usually a boy who hates poor people and looks down on the, for not being well educated. Women throw themselves at hi, and are after his money and rich lifestyle.