"Gimme" means "give me", so "Gimme them gold coins" means "Give me them gold coins'- here we get both "me" and "them" as objects. Does it mean "Give me gold coins and give them gold coins"? It is confusing to me.
Light of my life, fire of my loins Be a good baby, do what I want Light of my life, fire of my loins Gimme them gold coins, gimme them coins
Source: Lyrics My old man is a bad man