女大三抱金磚 [－－－－－砖]

Jyutping neoi5 daai6 saam1 pou5 gam1 zyun1
Pinyin nǚ dà sān bào jīn zhuān

Definitions (Wiktionary)

proverb
A wife three years older than the husband ensures a richer life. (rhyming saying)