I got chickens by the flock I got the block on lock

from Westside Connection – Westward Ho Lyrics on Rap Genius

Meaning

Girls follow me everywhere and I own this town

A bird = 1 kilogram or ~ 2.2 lbs.
Chickens by the flock means many kilograms
the block on lock refers to his control of the neighborhood drug trade

block on lock originally meant cellblock on lockdown

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