An onomatopoeia for a pounding or throbbing heart; used when one’s heart races from excitement, fear, or nervousness.
試験の結果を待っている間、胸がバクバクして眠れなかった。
While waiting for the exam results, my chest was pounding and I couldn't sleep.
ステージに上がると、緊張で心臓がバクバクした。
When I went on stage, my heart pounded with nervousness.
彼は急に驚いて胸がバクバクした。
He was suddenly surprised and his chest started pounding.
An onomatopoeia describing eating heartily or gulping food down (gobbling); similar to 'pakupaku'.
お腹が空いていたので、彼はご飯をバクバク食べた。
He was so hungry that he devoured his meal.
子どもたちはお菓子をバクバク食べて遊んでいる。
The children are gobbling sweets while playing.