In Venezuela we use this word a lot too: meaning anything...
Pasame esa baina (pass me that thing) Como esta la baina? (How is everything?)
by Alberto Leal July 27, 2010
Dominican word which can mean anything you want it to be. It is basically the equivalent of thing, but is used much more often.
Loco, pasame esa baina. Tengo que ir y hacer un paqueton de bainas.
by Domexicano March 15, 2005