I. ˈ ̷ ̷ˌ ̷ ̷ noun
( -s )
Etymology: flame (II) + out
: the cessation of operation of a jet aircraft engine (as through improper combustion or exhaustion of the fuel supply) — called also blowout
II. noun
1. : a sudden downfall, failure or cessation
a business marked by overnight triumph and equally sudden flameouts — Todd Gold
2. : a person whose successful career ends abruptly