How to pronounce 嘥時間 in Cantonese (4 out of 6):

唔再嘥時間
Stop wasting time.

Cantonese Sentence Breakdown

ng4
oh (expression of agreement or surprise)
(Cantonese) not
to hold in mouth
to bite
zoi3
again
嘥時間 saai1 si4 gaan3
time wasting