leech, or in other words a total lack of responsibility to provide for oneself. Relies heavily upon friends, neighbors or anyone really for sustenance. a slacker through and through.
Bart wakes up and thinks to himself, "dang, i dont have any money still" so he leaves his wallet at home on purpose and later says to his friends, "Whoops, I forgot my wallet today again, could you please buy my lunch again?" what a bottom feeder.