go down like a lead balloon

US /ɡoʊ daʊn laɪk ə liːd bəˈluːn/
UK /ɡoʊ daʊn laɪk ə liːd bəˈluːn/
"go down like a lead balloon" picture
1.

tomber à plat, être un échec total

to be very badly received or to fail completely

:
His joke about the boss went down like a lead balloon at the office party.
Sa blague sur le patron est tombée à plat à la fête du bureau.
The new marketing campaign went down like a lead balloon with customers.
La nouvelle campagne marketing est tombée à plat auprès des clients.