Proverbs 30:22 New English Translation

²²under a servant^[a] who becomes king,
under a fool who becomes stuffed with food,^[b]

Proverbs 30:22 sn A servant coming to power could become a tyrant if he is unaccustomed to the use of such power, or he might retain the attitude of a servant and be useless as a leader.
Proverbs 30:22 tn Heb “filled with food” (so ASV); NASB “satisfied with food”; NAB, NRSV “glutted with food”; CEV “who eats too much”; NLT “who prospers.”sn The expression stuffed with food probably represents prosperity in general. So the line portrays someone who suddenly comes into wealth, but continues to be boorish and irreligious.

New English Translation (NET)