shit
Merda is the Italian word for 'shit'. It is used in the same way as in English, to express frustration, anger, or disgust. However, it is considered a vulgar word and should be used sparingly in polite conversation.
My day has gone to shit
This phrase is typically used to express heavy dissatisfaction, suggesting that everything that could have potentially gone wrong has indeed gone wrong much to the speaker's chagrin.
What's in that shit?
This sentence is generally used when a speaker, exhibiting a degree of contempt or disdain, seeks to know what is contained within a specific object or concept.
You are full of shit
This phrase is used expressively by a speaker to imply that the individual being addressed is being dishonest or not telling the complete truth.