吃裡扒外 (hek3 leoi5 paa4 ngoi6) — live on sb. while helping others secretly in Cantonese
hek˗₃吃leoiˏ₅裡paaˎ₄扒ngoiˍ₆外简 吃里扒外
Mandarin Pinyin: chi1 li3 ba1 wai4
Meaning of 吃裡扒外
nounlive on sb. while helping others secretly
nounone who betrays or turned against one's benefactor