How to pronounce 腳瓜 in Cantonese (3 out of 4):

食晒個包 腳瓜大個
Eat the bag, and the legs grow.

Cantonese Sentence Breakdown

食晒 sik6 saai3
eat all
個包 go3 baau1
each pack
腳瓜 goek3 gwaa1
the calf (the lower part of the legs)
大個 daai6 go3
grown up