Often used metaphorically to describe wasted efforts or failed ambitions, not just actual plans. After failing the audition, her dreams of becoming an actress went up in smoke.
Pro Tip 2/3
Negative Outcome
The phrase implies a sense of disappointment or a negative outcome to a hopeful situation. Their championship hopes went up in smoke after the star player got injured.
Pro Tip 3/3
Irreversible Consequence
Used to express that something has been irreversibly damaged or lost. The secret recipe went up in smoke when the chef passed away without writing it down.