pie-in-the-sky vs way out

pie-in-the-sky

• Of a dream unlikely to ever come true; impractical, unrealizable. 

• Lacking reality and serviceability. 

way out

• Unconventional, eccentric. 

• Far away; to or at a great distance. 

• An act or instance of departure. 

• A solution to a problem; an escape. 

• A means of exit.