In Caitanya Bhagavata there is a pastime about when Lord Nityananda Prabhu danced naked as an Avadhut in Navadvipa ,,,and Lord Caitanya ran there and covered His transcendental body

with dresses, Lord Caitanya then took the used Kaupins of Lord Nityananda Prabhu and distributed it to the devotees tearing the Kaupins into many pieces.Kaupin is a underwear the Sadhus wear in India ,,Lord Caitanya told the devotees by honoring Lord Nityananda Prabhus Kaupin prasadam they would become free from lust .Srila Prabhupada introduced Kaupins to the west to his first Brahmacari disciples

There is a similar pastimes told in Caitanya Mangala :

70. Then Lord Gaura bid farewell to Avadhūta Lord Nityānanda Rāya.

71. Walking a few steps with Him, Lord Gaura was overcome with ecstatic love. He did not allow Him to go very far.

72. Lord Nityānanda could not bring Himself to depart, even though Lord Gaura had bid HIm farewell.

73. As He was bidding Him farewell, Lord Gaura said to Him: "Please give a portion of Your kaupīna to these devotees."

74. On Lord Gaura’s word, Avadhūta Lord Nityānanda gave a wonderful portion of His kaupīna to the devotees.

75. Accepting that portion of the kaupīna, Lord Gaura smiled and gave it to His personal associates.

76. Accepting that kaupīna-prasādam, the devotees wrapped portions of it around their heads.

77. Finally bidding farewell to Lord Nityānanda’s lotus feet, Lord Gaura’s associates returned to their homes.

78. Their hearts filled with despair, they all returned to their homes. As they sat in their homes, tears streamed from their eyes.

79. For some moments they bathed and worshiped their Deities. But at dusk they all went to see Lord Gaura-Hari.

80. Lord Nityānanda went to Lord Advaita Acārya Gosāi’s home. Day and night They happily talked of Lord Gaurāṅga.

81. Everyone please hear the story of another day’s pastimes. When you hear it you will attain ecstatic devotion for Lord Kṛṣṇa’s feet.

82. Songs glorifying Lord Gaura are the sweetest nectar. The wonderful stories they tell are beyond what the world or the Vedas have the power to know.

83. Lord Gaura gazed at His associates and embraced them. Hearing the chanting of His own glories, He danced in ecstasy.

Here is the pastime from Caitanya Bhagavata in summary :

During the Navadvīpa pastimes Nityānanda Prabhu constantly remained absorbed in bliss and acted like a young boy. During the rainy season everyone became frightened when He fearlessly swam in the crocodile- infested waters of the Ganges. Due to love of God, He sometimes remained in an unconscious state for three or four days. One day Nityānanda came naked before Śrī Gaurasundara in the mood of a child while loudly exclaiming, “Nimāi Paṇḍita is My Lord.” Mahāprabhu laughed and then took off the cloth from His own head and put it on Nityānanda. Thereafter the Lord smeared fragrant sandalwood pulp on the body of Nityānanda, offered Him a flower garland, made Him sit in front of Him, and then began to offer Him prayers. Nityānanda accepted the service of Mahāprabhu and heard His own open glorification without any agitation. Thereafter Mahāprabhu asked Nityānanda for a kaupīna, or brāhmaṇa underwear, and after tearing into pieces that kaupīna, which is desirable even by great mystic yogis, He distributed them to the devotees. The Lord instructed the devotees to tie those pieces of cloth on their heads and then described Nityānanda’s constitutional position and the glories of His mercy. Being ordered by Mahāprabhu, everyone happily tied those pieces of kaupīna on their heads. When Mahāprabhu instructed the devotees to drink the water that has washed the feet of Nityānanda, they immediately began to drink that water again and again. The devotees became intoxicated by drinking the water that had washed Nityānanda’s feet and considered that their lives have become successful. They praised their own good fortune and the sweetness of that water. Being agitated by love of God as a result of drinking the water from Nityānanda’s feet, they began to perform kṛṣṇa-kīrtana in ecstasy. Gaura and Nityānanda also joined them and performed kīrtana throughout the day. After the completion of kīrtana, Gaurasundara sat in the midst of the devotees and spontaneously declared, “The lotus feet of Nityānanda are worshiped by even Lord Śiva and Lord Brahmā, so if one exhibits faith and devotion to these lotus feet he actually exhibits faith and devotion to Me. Anyone who is envious of Nityānanda is not dear to Me, rather simply by the touch of air that has touched the body of Nityānanda one attains the mercy of Kṛṣṇa.” The devotees chanted “Jaya! Jaya!” in ecstasy and accepted these words from the mouth of Mahāprabhu with great respect.