French edit

Etymology edit

Literally, to come across a bone.

Pronunciation edit

  • IPA(key): /tɔ̃.be syʁ œ̃.n‿ɔs/
  • (file)
  • (file)

Verb edit

tomber sur un os

  1. to hit a snag, to find a fly in the ointment
    Synonym: tomber sur un bec

Conjugation edit