How to pronounce 題外話 in Cantonese (5 out of 8):

不過呢個題外話
But let's just say that.

Cantonese Sentence Breakdown

不過 bat1 gwo3
however
呢個 ni1 go3
this
題外話 tai4 ngoi6 waa2
off-topic
la5
“now”, with an connotation of doubt
surprise
disapproval