blue heavens—(Drug users) blue capsules or tablets containing barbiturate:
- Amobarbital tablets and capsules are called “blue birds,” “blue devils,” or “blue heavens.”
blue skies —(also: blue sky)
1. said of impractical or unfeasible plans and ideas:
- The research amounted to a “blue skies” project because it involved going beyond the present capacity of the reactor design.
2. (U.S. stock market) is used of fake or worthless bonds and stocks:
- They were what I would term “blue sky and hot air” securities.