pay an arm and a leg

pay an arm and a leg (for something)

To pay an exorbitant amount of money for something. The first-class cabins are by far the best way to travel on these cruise boats, but you pay an arm and a leg for them. I just want to travel somewhere sunny and warm without paying an arm and a leg.
See also: and, arm, leg, pay
Farlex Dictionary of Idioms.

pay an arm and a leg (for something)

 and pay through the nose (for something)
Fig. to pay too much [money] for something. I hate to have to pay an arm and a leg for a tank of gas. If you shop around, you won't have to pay an arm and a leg. Why should you pay through the nose?
See also: and, arm, leg, pay
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

cost/pay an ˌarm and a ˈleg

(informal) cost/pay a lot of money: We want to redecorate the living room, but I’m afraid it’s going to cost us an arm and a leg.
See also: and, arm, cost, leg, pay
Farlex Partner Idioms Dictionary
See also:
  • pay an arm and a leg (for something)
  • pay through the nose
  • pay through the nose (for something)
  • put (one) to great expense
  • pay-for-play
  • pay out of pocket
  • pay (for something) out of pocket
  • pay-to-play
  • make (one) pay through the nose
  • pay the penalty for (something)