backfire

US /ˌbækˈfaɪr/
UK /ˌbækˈfaɪr/
"backfire" picture
1.

sair pela culatra, dar errado

to have an unintended and unwelcome result opposite to what was intended

:
His plan to surprise her backfired when she found out beforehand.
O plano dele de surpreendê-la saiu pela culatra quando ela descobriu antes.
The new policy might backfire and cause more problems than it solves.
A nova política pode sair pela culatra e causar mais problemas do que resolve.
2.

engasgar, dar um tiro de escape

of an internal combustion engine: undergo a premature explosion in the inlet manifold or exhaust system, causing a loud noise

:
The old car's engine often backfired when starting.
O motor do carro antigo frequentemente engasgava ao ligar.
You could hear the motorcycle backfire as it sped down the street.
Dava para ouvir a motocicleta engasgar enquanto acelerava pela rua.
1.

engasgo, tiro de escape

a premature explosion in the inlet manifold or exhaust system of an internal combustion engine

:
The mechanic identified a loud backfire as the cause of the engine trouble.
O mecânico identificou um forte engasgo como a causa do problema no motor.
The sudden backfire startled everyone on the street.
O súbito engasgo assustou a todos na rua.