Source : Webster's Revised Unabridged Dictionary (1913)

Bolo \Bo"lo\, n. [Sp.]
   A kind of large knife resembling a machete. [Phil. Islands]

Source : WordNet®

bolo
     n 1: a cord fastened around the neck with an ornamental clasp and
          worn as a necktie [syn: {bolo tie}, {bola tie}, {bola}]
     2: long heavy knife with a single edge; of Philippine origin
        [syn: {bolo knife}]