We start a new section, Idioms (modismos). An idiom is an expression whose meaning is not predictable from the usual meanings of its constituent elements. They are mostly used in colloquial contexts.
In English, meter la pata, will be: to put your foot in your mouth.
¿Alguna vez has metido la pata? ¿En qué situación? ¡Cuéntanos!
As always, you can leave your answers in the commentaries of this same post, in your learning journal in Kotoba Miners' Spanish subforum or as a reply in this image in Kotoba Miners' Facebook.