Very old and dilapidated buses. It also means dirty and smelly, ragged.
It seems that also are called so old buses and messed that circulate to transport travelers in cities or towns of Mexico, and also guajalotes.
CHIMECO, CA: in the Mexican State of Guerrero, said is which has the dirty face, boy, charcoal or animal.
CHIMECO, CA: in Guatemala, said is of children having blond hair,
