A sannyāsī is expected to collect a little food from each and every householder. That is to say, he should take whatever he requires to eat. This system is called mādhukarī. The word mādhukarī comes from the word madhukara and means "honey-collecting bees." Bees collect a little honey from each flower, but all these small quantities of honey accumulate to become a beehive. Sannyāsīs should collect a little from each and every householder and should eat simply what is necessary to maintain the body. Being a sannyāsī, Lord Caitanya Mahāprabhu could collect a little food from the house of Sārvabhauma Bhaṭṭācārya, and this was the Bhaṭṭācārya's request. Compared to the food eaten by the Lord on other occasions, the Bhaṭṭācārya's feast was not even a morsel. This is what the Bhaṭṭācārya is pointing out to the Lord.
(Sri Caitanya Caritamrta----2:15:243----purport).

He said, "No, no. I cannot accept sumptuous foodstuff from a brāhmaṇa's place. That is not my duty. I shall accept mādhukarī." Mādhukarī is a principle introduced by these Gosvāmīs. Mādh, mādhu. Mādhu means honey. And the bees who collect honey from flower—a drop from this flower, a drop from that flower, a drop from that flower—in this way, he subsists. So this mādhukarī system means a renounced order of sannyāsī or a vairāgī, he should not accept in one place sumptuously. He should go to every householder and take a bit of capātī from this house, a bit of capātī from that house, a bit of capātī from that house, so that the householders also may not be disturbed and they may be benefited. When a real sannyāsī or vairāgi accepts something from the householder, it is a great benefit for him. Therefore to accept little from this house, to accept little from that house, that is also another mercy of the renounced sannyāsī or devotees of the Lord.
( Lecture on Sri Caitanya Caritamrta---2:20:66-96).