Hey mama rock me
Rock me mama like the wind and the rain
Rock me mama like a south-bound train
Hey mama rock me

from Old Crow Medicine Show – Wagon Wheel Lyrics on Rap Genius

Meaning

These lines were actually written by Bob Dylan as part of an unfinished track, “Rock Me, Mamma” from the Pat Garrett and Billy the Kid sessions.
http://www.youtube.com/watch?feature=player_embedded&v=VNTsYfjBcuQ

Old Crow Medicine Show added the verses and split the profits from the song with Bob Dylan.

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