appuyer sur le champignon

Literally, “to press on the mushroom”. The word champignon (“mushroom”) is slang for the accelerator pedal.

• IPA^(key): /a.pɥi.je syʁ lə ʃɑ̃.pi.ɲɔ̃/

• Audio

  (file)

• Audio (CAN)

  (file)

appuyer sur le champignon

1. (informal) to step on it, to floor it, to put the pedal to the metal, to put one's foot down, to step on the gas

   Synonyms: mettre les gaz, mettre le pied au plancher

   Chauffeur, si t’es champion
   Appuie (× 2)
   Chauffeur, si t’es champion
   Appuie sur le champignon.

   (please add an English translation of this usage example)

• “champignon”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
• “champignon” in Dictionnaire français en ligne Larousse.