To become better; improve in condition, especially by feeding.
To feed (on); to revel (in).
To thrive by feeding; grow fat; feed oneself gluttonously.
To thrive, prosper, or live in luxury, especially at the expense of others; fare sumptuously.
Robber barons who battened on the poor
To gratify a morbid appetite or craving; gloat.
To improve by feeding; fatten; make fat or cause to thrive due to plenteous feeding.
To fertilize or enrich, as land.
To furnish with battens.
To fasten or secure a hatch etc using battens.