Expression: Péter les plombs
Pronunciation: pay tay lay plo(n)
Meaning: to blow a fuse, hit the ceiling, flip one's lid, lose it (one's temper)
Literal translation: to blow the fuses
Synonym: péter une durite - "to blow a radiator hose"
The French expression péter les plombs, or péter un plomb, is just like "to blow a fuse" in English. They are both used literally in reference to electrical fuses, and figuratively when talking about getting extremely angry and flying into a rage.
Quand je les ai vus ensemble, j'ai pété les plombs !
When I saw them together, I lost it!