hard cheese

Short definition from Wiktionary

Noun

1. 1
   A type of rennet cheese that is firm owing to the curds having been pressed or comminuted to a large degree to shed more whey and ripened for a longer time.
2. 2
   Used other than figuratively or idiomatically: see hard, cheese.

Interjection

1. 1
   An unsympathetic retort to someone suffering misfortune.