The answer to the above searching questions is here given. They that tarry long at the wine (Isaiah 5:11), who sit till late hours drinking. They that go to seek mixed wine; i.e. go to the wine house, place of revelry, where they may taste and give their opinion upon "mixed wine," mimsak, wine mingled with certain spices or aromatic substances, or else simply with water, as it was too luscious to be drunk undiluted (see on Proverbs 9:2).
Septuagint, "those who hunt out where carousals are taking place."