肉がつく

にくがつく

to gain weight; to put on weight

expression verb

Example sentences

最近（さいきん）、お腹（なか）の周（まわ）りに肉（にく）がついてきたみたい。中年太（ちゅうねんぶと）りかな。

I'm getting a spare tire around my waist. I guess it's middle age creeping up on me.