5jj"She's been opening my letters. That takes the cake!"
Is it similar in meaning to "that sucks"? Ish. That is the most annoying, frustrating, stupid, irresponsible, etc thing she has done. Note that BrE prefers 'the biscuit'.
"You can't hold two passports. Dual citizenship is forbidden in our country. You can't have your cake and eat it too." OK? Yes
Student or Learner