Hey you! Yes, you! Thank you for adding beauty to the world!
Definitions of FOC:
adjective: free of charge
noun: faint object camera
noun: freedom of choice
noun: father of chapel
noun: Friend of the Court
noun: first of class
noun: (UK, rail transport) freight operating company
noun: (military) Initialism of full operational capability.
noun: (publishing, retailing) Initialism of final order cutoff. [(publishing, retailing) The latest date that retailers can submit their finalized orders before publishers set up their print runs. Orders submitted before this will be fulfilled as the publisher wills, orders submitted after this will be subject to availability.]