आयुधानामहं वज्रं धेनूनामस्मि कामधुक्। प्रजनश्चास्मि कन्दर्पः सर्पाणामस्मि वासुकिः ॥

āyudhānām ahaṁ vajraṁ dhenūnām asmi kāmadhuk prajanaśh chāsmi kandarpaḥ sarpāṇām asmi vāsukiḥ

Of weapons I am the thunderbolt; of cows I am Kâmadhuk; I am Kandarpa of the progenitors; of serpents Vâsuki am I.

In plain words: Krishna says that among weapons He is the thunderbolt. Among cows, He is Kamadhuk, the magic cow that grants every wish. Among those who create life, He is Kandarpa, the god of love. Among serpents, He is Vasuki, the serpent king.