むくむくrising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy

寝(ね)ていた犬(いぬ)がムクムクと起(お)きた。

The dog that was sleeping rose up slowly. {rising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy}

煙突(えんとつ)から煙(けむり)がムクムクと出(で)ています。

Smoke is billowing out from the chimney. {rising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy}

雲(くも)がムクムクと出(で)てきて、雨(あめ)が降(ふ)り始(はじ)めた。

Clouds began to billow out, and it started to rain. {rising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy}

ムクムクの赤(あか)ちゃんは、体(からだ)のどこを触(さわ)っても柔(やわ)らかいです。

The baby of Mukmuk is soft no matter where you touch on its body. {rising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy}

好奇(こうき)心(しん)がムクムク頭(あたま)をもたげ、じっとしていられなくなりました。

Curiosity began to rise up within me, and I couldn't stay still anymore. {rising up, towering, billowing (e.g. clouds of smoke), plump, chubby, fat, shaggy, hairy}