also: うかれおとこ
noun
A man who enjoys flirting and casual romantic pursuits; often implies a lighthearted, carefree attitude.
彼は浮かれ男で、毎晩違う女性とデートしている。
He's a playboy, dating a different woman every night.
あの浮かれ男には気をつけたほうがいいよ。
You'd better be careful with that womanizer.
Compound of 浮かれ (ukare, 'merry, lighthearted', from verb 浮かれる) + 男 (o, 'man'). The reading うかれおとこ is a less common variant.