Not very rude.
They are saying in russian and, parhaps, some phrases in Hebrew.
In russian:
-Бляяя. Ты лох!
-А ты лошара, понял, бля!"
-Сам ты лошара!
-Бестолковый ман....сос! (my poor ears! )

And goes on in Hebrew.
p.s. It's very difficult to translate, many only russian rude words it has. But I will try:

-What a fuck! You are dupe!
-While you are dupeable, anderstand, fuck!
-You are another!
-Stupid ...