¿Qué significa ไหนจะ ?

See a translation

I'm not sure if there's an English equivalent for this idiom.

When used in front of a sentence, it signals some frustration from the speaker who's possibly complaining about having to deal with all those things that follow ไหนจะ.

I have so many things to do. I've got these dishes to do, laundry, cleaning. I can't really help you now.

ผมมีงานเยอะแยะไปหมด ไหนจะ(ต้อง)ล้างจาน ซักผ้า ทำความสะอาด ผมช่วยคุณไม่ได้อะ

sometimes you can repeat this phrase multiple times and people usually say it with ต้อง if followed by a verb.

ไหนจะต้องล้างจาน ไหนจะต้องซักผ้า ไหนจะต้องทำความสะอาด
I have to do the dishes. And the laundry. And the cleaning. (imagining someone saying this in a complaining / ranting mode) it's like having multiple ANDs to begin listing each and every item to make your complaint a bit more forceful in English.

It's usually used in this sense and tends to be followed by things like.. thus I cannot help you / do what you want me to. Or perhaps it's not said but implied.