a king's ransom
• a huge amount of money; a fortune.
• "perfume which cost a king's ransom per ounce"
Similar:
a fortune,
a small fortune,
a huge amount,
a vast sum,
millions,
billions,
a mint,
a bundle,
a packet,
a pretty penny,
a tidy sum,
a bomb,
loadsamoney,
shedloads,
big bucks,
big money,
gazillions,
big bickies,