verb (used with object)
to feed (animals) abundantly before slaughter.
to enrich: to fatten the soil; to fatten one's pocketbook.
4. Cards. a.
Poker. to increase the number of chips in (a pot).
Pinochle. to play a card that scores high on (a trick) expected to be taken by a partner.
verb (used without object)
overfatten, verb (used with object)