唔好呀 (笑)
not good. (Laughs)

Cantonese Sentence Breakdown

唔好 m4 hou2
(phrase) don't.
呀 haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)
笑 siu3
laugh
smile M: 个gè [个]
giggle
chuckle
to ridicule
to jeer