n'avoir ni queue ni tête

Literally, “to have neither tail nor head”; compare Danish finde hoved eller hale.

• IPA^(key): /n‿a.vwaʁ ni kø ni tɛt/

n’avoir ni queue ni tête

1. to make no sense, to have no rhyme or reason

   Synonym: ne rimer à rien

   Ce que tu dis n’a ni queue ni tête. ― What you're saying doesn't make any sense.

• sans queue ni tête