madder do ee, madder do ee fuk
A Cornish phrase that means why even bother, it's not worth the effort and you're too annoyed to care
'Madder do ee, madder do ee fuk' when his lunch was just a sandwich
'Madder do ee, madder do ee fuk' after his teacher gave him extra homework
'Madder do ee, madder do ee fuk' when his friend forgot his birthday