Its like saying "are you serious?" or "are you for real?". Muslims believe it's a serious matter to swear by god (or anything else). Therefore, to swear by a loved one's grave you have to be honest about what you are saying.

An expression of modesty, embarrassment, disappointment, or anger that is fairly inoffensive and tame.

An interjection that expresses stupor and surprise, and sometimes disbelief. Similar to “Wow” or “No way”. Used commonly in Rome, but also in other cities in the Lazio region, such as Anzio, Latina or Nettuno.

A Jack-of-all-trades to express admiration, surprise or importance, usually in situations where one wants to stress something happened above average, or one perceived it as such.

Used to call someone's attention, or to address your interlocutor directly, or in general to add intensity to a phrase. Similar to Argentinian "che", it can be used in conjunction: "che, bo". For more impact, can also be used several times in a single phrase.