put your foot in your mouth

US /pʊt jʊər fʊt ɪn jʊər maʊθ/
UK /pʊt jʊər fʊt ɪn jʊər maʊθ/
"put your foot in your mouth" picture
1.

mettre les pieds dans le plat, faire une gaffe

to say something accidentally that embarrasses or offends someone

:
I really put my foot in my mouth when I asked her if she was pregnant.
J'ai vraiment mis les pieds dans le plat quand je lui ai demandé si elle était enceinte.
He tends to put his foot in his mouth at family gatherings.
Il a tendance à faire des gaffes lors des réunions de famille.