thanks a lot

Từ điển Oxford Advanced Learner 8th

thanks a lot idiom
1. used to show that you are very grateful to sb for sth they have done
• Thanks a lot for all you've done.
2. (ironic)used to show that you are annoyed that sb has done sth because it causes trouble or difficulty for you
• ‘I'm afraid I've finished all the milk.’ ‘Well, thanks a lot!’
Main entry: ↑thanks_idiom