In general in Colombia is the stomach of birds gizzard. By extension and colloquially also means belly, paunch, stomach pouch.
In ready, my land, also called crop or burreso to the small burrito that even mama
CROP: in Hinojosa de Duero, municipality of Salamanca, burrito small that mama still.
BUCHE:BOLSA WHERE THE BIRDS PLACE FOOD BEFORE BEING CRUSHED.STOMACH OF PIGEONS.EST