verb/sə nwa.je dɑ̃.z‿œ̃ vɛʁ d‿o/
to make a mountain out of a molehill (to get all worked up over the slightest difficulties)
Synonyms: faire une montagne d'une taupinière
Literally, “to drown in a glass of water”. Compare Greek πνίγομαι σε μια κουταλιά νερό (pnígomai se mia koutaliá neró).