hot air

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

空虚な言葉, 大言壮語

empty, exaggerated, or boastful talk

:
His promises were just a lot of hot air.
彼の約束はただの空虚な言葉だった。
Don't listen to his hot air; he never follows through.
彼の空虚な言葉に耳を傾けないで。彼は決して実行しないから。