I think Marcus gives away in advance in his #6 video 'Confusion of Things' what the BC represents at minute 4:42...
ALIENATION: (law) the voluntary and absolute transfer of title and possession of real property from one to another.
HOMAGE: did become (again) his man. (of life and limb)
Printed copy · Anthology Volume 3, page 949Printed copy from The Tender For Law Anthology, Volume 3, page 949 (printed 13 June 2014). Added by this site; not part of the Facebook export.