ksino ta arxidia mou
Literal, ksino ta arxidia mou, in Greek means scratching my balls.

But it is most commonly used for it's slang meaning, that is doing absolutely nothing.
The manager went on a trip today, so i spend the day ksino ta arxidia mou.

Actually in Greek you would say ksinontas ta arxidia moy to denote an on going action of scratching :-)