After looking for this hadeeth in the books of Sunnah, we could not find any basis for it. This hadeeth was not mentioned even by the scholars who compiled collections of weak and fabricated hadeeths. Perhaps it is one of the false hadeeths that were fabricated in recent times.
The meaning indicated by the hadeeth has no basis in the Sunnah of the Prophet (blessings and peace of Allah be upon him). Eating and drinking are not among the ‘awrahs which must be covered.
The Messenger (blessings and peace of Allah be upon him) used to eat with his Companions, so how can eating and drinking be ‘awrah?!
And Allah knows best.