butu Binghambútun. a small weapon with a single shark's tooth, used by jealous women.Sabatierbutun. butubutu: sulkiness.a. sullen, surly.v. to sulk, to elbow one's way.vt. butua, butubutua: to push away.fig. to incite, to force.vt. kabutua riana, matana: to make a sulky face, to be closed up. Words that link heretanganangana cut and slashed with a butu or knife. ← butorotorobutua →