むらむら

adverb, adverb taking the 'to' particle

irresistibly; suddenly; welling up

Mimetic adverb describing a strong urge or feeling that arises suddenly and uncontrollably. Often used with ～と or ～する to describe impulses.

• 彼かれの話はなしを聞きいて、むらむらと怒いかりがこみ上あげてきた。

  Hearing his story, anger welled up inside me irresistibly.

• むらむらと好こう奇き心しんが湧わいて、つい覗のぞいてしまった。

  Curiosity suddenly surged up and I couldn't help but peek.

noun or participle which takes 'suru'

get turned on; feel horny

Colloquial use, often as むらむらする, describing a sudden surge of sexual desire. Can be used by any gender.

• 彼かの女じょのセクシーな姿すがたを見みて、むらむらしてきた。

  Seeing her sexy figure, I started to feel turned on.

• 一人ひとりでいると、むらむらすることもある。

  Sometimes when I'm alone, I get horny.