A goofus often dedicates every minute of every day to being a
gangster or something similar (and usually thinks other
people live the same way as them, or wants to be the same
thing as them).
He/she spent his/her entire life trying to pull the strings of other
people who were were too
uptight to be in that life only
gangsters knew. He/she was good enough at it, you wouldn't even think he/she was ever a goofus.