Mass...?

[SunMoon]

I am not sure whether the word is correct but I hear people to say that word when they are talking about something wrong or not good.

They say something like 'it's a mass!'

What exactly do they say? And what does it mean?

[svartnik]

I am not sure whether the word is correct but I hear people to say that word when they are talking about something wrong or not good.

They say something like 'it's a mass!'

What exactly do they say? And what does it mean?

Open this link:
Cambridge Dictionaries Online - Cambridge University Press