A bastard modifier. A person exhibiting especially
abhorrent levels of bastardry is known as a "ratfink bastard." Alternately, for a milder
offense,
the term "ratfink" can be used independently of bastard.
Do you know where Jared is? Next
time you see him, tell that ratfink bastard I'm going to tear out his scrotum for knocking up my sister.
Timmy's the kind of
lazy ratfink that leaves half a sheet of toilet
paper on the roll just so he doesn't have to replace it with a new one.