What's the meaning of ブチブチ?


I'm having some trouble to find the meaning of this word. I already saw this 2
times in a game and I can't find the meaning in any dictionary that I use.

Examples:

> あやせ：「そうなると私のことなんか放っておいて…」
>
> 京介： ブチブチと文句を言ってくる…んだけど、あれ？なんだか言葉の切れ味が鈍いような…

and...

> 加奈子：「イイエ、ナンデモ」
>
> あやせ：加奈子はそのあともブチブチと何か言っていたけど…




From context (such as ブチブチと **文句を** 言って), it looks like `ブチブチ` has the same
meaning as `ブツブツ`, which is onomatopoeia that corresponds fairly well to
_grumble, grumble_ , as when dissatisfied or complaining. See [sense five for
ブツブツ in the Progressive
J-E](http://dic.yahoo.co.jp/dsearch?enc=UTF-8&stype=0&dtype=3&p=%E3%81%B6%E3%81%A4%E3%81%B6%E3%81%A4)
for examples, or look up `ブツブツ` in your favorite dictionary.

I also found [Google
results](https://www.google.com/search?hl=ja&output=search&sclient=psy-
ab&q=%E3%83%96%E3%83%84%E3%83%96%E3%83%84%E3%80%80%E3%83%96%E3%83%81%E3%83%96%E3%83%81&=&=&oq=&aq=&aqi=&aql=&gs_l=&pbx=1)
with `ブツブツ` and `ブチブチ` together, which seems to confirm that they're
variations on the same thing.




From context (such as ブチブチと **文句を** 言って), it looks like `ブチブチ` has the same
meaning as `ブツブツ`, which is onomatopoeia that corresponds fairly well to
_grumble, grumble_ , as when dissatisfied or complaining. See [sense five for
ブツブツ in the Progressive
J-E](http://dic.yahoo.co.jp/dsearch?enc=UTF-8&stype=0&dtype=3&p=%E3%81%B6%E3%81%A4%E3%81%B6%E3%81%A4)
for examples, or look up `ブツブツ` in your favorite dictionary.

I also found [Google
results](https://www.google.com/search?hl=ja&output=search&sclient=psy-
ab&q=%E3%83%96%E3%83%84%E3%83%96%E3%83%84%E3%80%80%E3%83%96%E3%83%81%E3%83%96%E3%83%81&=&=&oq=&aq=&aqi=&aql=&gs_l=&pbx=1)
with `ブツブツ` and `ブチブチ` together, which seems to confirm that they're
variations on the same thing.

