add fuel to the fire
/ˌæd ˈfjuː.əl tə ðə ˈfaɪə/idiom
to make a bad situation worse, especially an argument
подливать масла в огонь
Русский аналог: «подливать масла в огонь»
Также add fuel to the flames.
“His rude reply only added fuel to the fire.”
“Don’t add fuel to the fire by bringing up the past.”
“The new report added fuel to the fire of the debate.”