Real Dictionary

blunt
adjective: If you are blunt, you say exactly what you think without trying to be polite.

blunt in American English
a marijuana cigarette, specif. one made by putting marijuana into the wrapper of a hollowed-out cigar
slow to perceive, feel, or understand; dull
to develop a dull edge or point
to make (an edge or point) dull
adjective: having an obtuse, thick, or dull edge or point; rounded; not sharp
intransitive verb: to become blunt
noun: something blunt, as a small-game arrow, a short sewing needle, or a short, thick cigar
transitive verb: to make blunt; hebetate

blunt in British English
to make less sharp
adjective: (esp of a knife or blade) lacking sharpness or keenness; dull
noun: a cannabis cigarette
noun: Anthony. 1907–83, British art historian and Soviet spy