You might mess up if you don't know how to use the idiomatic French expression mettre les pieds dans le plat, so click to learn all about it.
More: French expressions
More: French expressions

By Laura K. Lawless, About.com GuideSeptember 23, 2013
Comments
Merci beaucoup pour cet enseignement dans la langue française. Et en particulier pour essayer de distinguer les distinctions subtiles entre ces idiomes.
Laura!
Just wanted to let you know how wonderful your blog is! It’s immensely helpful- especially Le Mot du Jour and the French expressions- as I try to learn the language.
Also, I read through (in French!) your description of your life- and goodness, I’m envious!
In NZ and Australia we use the term “put your foot in it”. To mean you have done or said something foolish, I guess this is the same meaning as the french expression.
Hi, Laura,
Would “to talk out of turn” be a good equivalent? To my ear it conveys the idea of saying something indiscreet or inappropriate without being embarrassed — in fact, it usually means that the speaker does so in a deliberately challenging way.
I can’t tell you how much I admire what you have created with your French site at About.com. I have been going to it almost daily for the past six months in order to resuscitate my high-school French from 40 years ago. I have learned tons of things I never knew in the first place. Your site is comprehensive and authoritative — and fun! I speak as a former teacher of college-level Russian, so I have some insight into what goes on derrière les coulisses pédagogiques! Amitiés, John