Is there an onomatopoeia of mumbling in japanese?


I was watching an anime, and they use repetitions of "ブツ" everytime a
character is mumbling. Is this the rule for japanese or it's just something
made up for a particular anime/manga?




For mumbling, there are 「ブツブツ」、「ボソボソ」、「ブツクサ」, etc. Those three are commonly
used.

If you did not know, we have an onomatopoeia for "everything" including things
that do not even make any actual sound.




For mumbling, there are 「ブツブツ」、「ボソボソ」、「ブツクサ」, etc. Those three are commonly
used.

If you did not know, we have an onomatopoeia for "everything" including things
that do not even make any actual sound.

