A happy hunting ground noun phrase
Used to refer to a place where everyone is happy or finds what they want
The Maldives is a happy hunting ground for those who love traveling.
The developing countries are happy hunting grounds for firms seeking cheap labor forces.
A shopping festival like this must be a happy hunting ground for shopaholics.
To say that someone is dying or approaching or very close to death.
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.