Maksud perkataan "speaking of which" dalam bahasa Melayu

Apakah maksud "speaking of which" dalam bahasa Inggeris? Terokai maksud, sebutan dan penggunaan khusus perkataan ini bersama Lingoland

speaking of which

US /ˈspiːkɪŋ əv wɪtʃ/
UK /ˈspiːkɪŋ əv wɪtʃ/

Idiom

bercakap mengenainya, tentang itu

used to introduce a comment or question about something that has just been mentioned

Contoh:
I saw Tom yesterday. Speaking of which, did you hear about his new job?
Saya nampak Tom semalam. Bercakap mengenainya, awak dengar tak pasal kerja barunya?
The meeting is at 3 PM. Speaking of which, have you prepared the report?
Mesyuarat pukul 3 petang. Bercakap mengenainya, awak dah sediakan laporan tu?