Ass came with a hump from the jump she was a camel
I want to ride like Arabians,

from Kendrick Lamar – Sherane a.k.a. Master Splinter's Daughter Lyrics on Rap Genius

Meaning

Kendrick compares Sherane’s “hump” to the hump on a camel’s back, and he wants to ride it like you would a camel.

Kendrick could also be saying just how camels grow their back humps early in their lives, Sherane had a big ass (hump) at a young age as well.

Arabian — aka- Dromedary camels have only one hump and are used in the desert to go long distances for long periods of time.

(This desert imagery ties in well with the end of the second verse.)

Actual representation of Sherane:

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