'Fattest' in the Bible

when the anger of God went up against them, killed some of the fattest of them, and struck down the young men of Israel.

In time of security shall he come even on the fattest places of the province; and he shall do that which his fathers have not done, nor his fathers' fathers; he shall scatter among them prey, and spoil, and substance: yes, he shall devise his devices against the strongholds, even for a time.