All my bunnies outta this world like Captain Bucky O
Hair to the small of her back

from Wale (Ft. Aaron Wess & Rick Ross) – The Show Lyrics on Rap Genius

Meaning

Bucky O'Hare is the captain of a spaceship that contains other mammals.

And the second line continues on from the Captain Bucky O reference with a hare/hair homophone.

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