grand bien te fasse

• grand bien vous fasse (T–V distinction)

Literally, “much good may it do you”.

• IPA^(key): /ɡʁɑ̃ bjɛ̃ t(ə) fas/

grand bien te fasse

1. good for you

   Synonym: tant mieux pour toi

• Chiefly used ironically, to suggest that the preceding fact is uninteresting or futile.
• Also used in the second- and third-person singular and plural: grand bien vous fasse, grand bien lui fasse (“much good may it do him/her”), grand bien leur fasse (“much good may it do them”).