kaataa bensaa liekkeihin

Finnish

Etymology

a modern alteration of a now-rarer kaataa öljyä liekkeihin "to pour oil on flames" > calque of Latin oleum camino addo "to add oil to the furnace" (directly or via another language)

Verb

kaataa bensaa liekkeihin

1. (idiomatic) to add fuel to fire (literally: "to pour gasoline on flames")