Nje means one (the number one). Mut means Sh* t.
Putting it all together, Nje Mut means A sh* t. It is often used
when trying to say something is worthless, For instance if you
worked for 100 hours and you only earned $500, in Albanian you may
say you earned nje mut.
As you might assume this is not the kind of language you would
use in an Albanian family, rather than a language used with friends
in a bar.