How to pronounce 說笑 in Cantonese (2 out of 3):

不要說笑
Don't laugh at me.

Cantonese Sentence Breakdown

不要 bat1 jiu3
do not
說笑 seut3 siu3
joke
baa6
(modal particle indicating suggestion or surmise)
...right?
...OK?
...I presume