Shanghai dialect, thank you. What did you say?/Sorry?

Thank you. It means "thank you for getting it" in Shanghai dialect.

Wu dialect can be written in Chinese characters. In the late Qing Dynasty and the early Republic of China, there were Wu language publications in Shanghai.

"Thank you" is written as "thank you" or "Xie Nong" and pronounced as [ziazia'nnlak]. Well [nn] is a variant of the old saying "er", and "la" is an entering tone word, which is the plural suffix of personal pronouns in Wu language and is equivalent to "men". Now "little shanghai" has been "confused" and the word "Xie" has been pronounced "Xia".

Extended data:

Xie Zhi 'an or Zia's rising tone (voiced, zh) is similar to Mandarin X, but the vocal cords vibrate strongly when exhaling, and the opposition between voiced and voiced is an important feature of Shanghai dialect in inheriting ancient Chinese.

In fact, "evil" is the mother of "evil" in ancient Chinese, and its pronunciation belongs to the sharp sound in the sharp sound group, which should be pronounced zia, where Z is the same as Z in English. The pronunciation of "Xie" recorded in Guang Yun in the early Song Dynasty is "Ci Ye", which shows that Zia's pronunciation is consistent with that in Tang and Song Dynasties. New Shanghainese dialect has a combination of sharp sounds and group sounds, and all sharp sounds are pronounced with group sounds, so it is generally pronounced by A Zhi. )

References:

Shanghai dialect (the language used by Shanghainese) Baidu Encyclopedia