ぷかぷかlightly (floating), buoyantly, puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)

ラッコが水面(すいめん)にぷかぷかと浮(う)いています。

The otter is buoyantly floating on the water's surface. {lightly (floating), buoyantly, , puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)}

祖父(そふ)が葉巻(はまき)をぷかぷかと吸(す)う様子(ようす)が好(す)きです。

I like watching my grandfather puffing on his cigar. {lightly (floating), buoyantly, , puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)}

あの空(そら)にぷかぷか浮(う)かぶ雲(くも)に乗(の)ってみたいなぁ〜。

I wish I could ride on those clouds that are floating lightly in that sky. {lightly (floating), buoyantly, , puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)}

ゴミが川(かわ)をぷかぷかと流(なが)れていくのを見(み)て悲(かな)しい気持(きも)ちになった。

I felt sad seeing trash floating lightly down the river. {lightly (floating), buoyantly, , puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)}

近所(きんじょ)のおじいさんはいつも縁側(えんがわ)でパイプをぷかぷかとふかしています。

The old man in the neighborhood is always puffing on his pipe on the porch. {lightly (floating), buoyantly, , puffing (on a pipe, cigarette, etc.), tooting (a trumpet, horn, etc.), blowing (a flute, whistle)}