hot air
US /hɑt ɛr/
UK /hɑt ɛr/

1.
bla, bla, bla, charlatanería
empty, exaggerated, or boastful talk
:
•
His promises were just a lot of hot air.
Sus promesas eran solo mucho bla, bla, bla.
•
Don't listen to his hot air; he never follows through.
No escuches su bla, bla, bla; nunca cumple.