The failure of a jet engine where the flame is extinguished (1940s+)
A person of fleeting fame; flash in the pan, has-been: He is the Russian Hotspur, a fiery flameout who will soon become a historical footnote/ Michael Jackson was a flame-out, too(1990s+)
verb phrase
Of a jet engine, to fail by losing the flame of its fuel (1940s+)
o lose energy; falter; collapse: The Stevens Point native flamed out in the 1500 meters(1990s+)