I’m-a eat your food up, boo

from Azealia Banks – 212 Lyrics 5 on Rap Genius

Probably a reference to line 10, where she says she’ll eat lunch with him if he buys (“sit in that lunch if you’re treatin').

“eat your food” means to defeat someone, whether it be in da streetzzzz or rap battling

It could also possibly refer to eating his girl.

In correctional facilities, when one steals food directly from another’s tray during mealtime, it’s considered to be the utmost disrespect, usually resulting in a fight. AB’s gonna eat ya food up, and is prepared to fight if that’s what ensues.

This is “eat” rather than “drink” but I can’t help thinking of this:
http://www.youtube.com/watch?v=RKQ3LXHKB34

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