As nouns the difference between bolas and bolo
is that
bolas is a throwing weapon made of weights on the ends of interconnected cords, designed to capture animals by entangling their legs while
bolo is a long, heavy, single-edged machete (
Wikipedia).
As a verb bolo is
to attack or despatch with a bolo knife.
As an acronym BOLO is
an All-Points Bulletin (APB) with information to pick up an individual.