(one) should be so lucky

(one) should be so lucky

That is very unlikely to happen or be the case. The phrase is used sarcastically or with a sense of resignation. A: "Do you think you'll get the promotion?" B: "I should be so lucky!" You think Paula likes Brad? He should be so lucky!
See also: lucky, should
Farlex Dictionary of Idioms.
See also:
  • (one) will be lucky
  • (one) would be lucky
  • barrel of fun
  • are we having fun yet
  • Are we having fun yet?
  • AWHFY
  • this ought to be good
  • this should be good
  • bright idea
  • a bright idea