You mean when she speak some slavic (which possibly not even exist) language?
Here it's something like "Lustful/Fornicated damned American scoundrels"
Not sure about first word.
Second one harder, so it's mostly assumption.
It seems that she refers to the how smoothly he was talking to her comparing him with a snake or even Biblical serpent.
Something like "What a smooth/slick fancy (? not sure) snake (she uses word "Гад", which means all reptiles and amphibian together, but at the same time it is mild curse meaning something like "bastard")"
p.s. Last word also can be "Гадюка" or Viper