首七位
first seven...

Cantonese Sentence Breakdown

首 sau3
to confess a crime
to turn oneself in
七 cat1
seven
euphemism for 𨳍, prick
位 wai6
position
location
place
seat
classifier for people (honorific)
classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
throne
post
rank
status