Flagon
The word once rendered "flagon" or "flagon of wine" in older translations stands in UPDV as "cake of raisins" — a pressed cake of dried grapes used as festal food and as an offering tied to other gods.
A festal portion at the ark's homecoming
When David brings the ark up to Jerusalem, he distributes festal food to the assembled crowd: "And he dealt among all the people, even among the whole multitude of Israel, both to men and women, to everyone a cake of bread, and a portion [of flesh], and a cake of raisins. So all the people departed every one to his house" (2Sa 6:19). The cake of raisins stands beside bread and meat as part of the public celebration.
Bound up with idolatry in Hosea
In Hosea the same cake appears as a marker of unfaithful worship. "And Yahweh said to me, Go again, love a woman loved by a companion, but [is] an adulteress, even as Yahweh loves the sons of Israel, though they turn to other gods, and love cakes of raisins" (Ho 3:1). The image binds Israel's affection for these cakes to its turning toward foreign gods.