hot air

US /hɑt ɛr/
UK /hɑt ɛr/
"hot air" picture
1.

bla-bla, fanfaronnade

empty, exaggerated, or boastful talk

:
His promises were just a lot of hot air.
Ses promesses n'étaient que du bla-bla.
Don't listen to his hot air; he never follows through.
N'écoute pas son bla-bla; il ne tient jamais ses promesses.