Muro is right: troop is corpse, and fillia is schoolgirl (although Mike's pronunciation isn't top-notch on this one =]), Koshka means female cat, as far as strashun goes - this word does not actually exist in Russian, but it's close to strashniy which is adj. for scary. Eliza's убийца means killer (although I misheard it for певица pye-vee-tsah which is singer).
Pyrogi are one of the Russia's trademark dishes which is basically pastry with whatever filling you like. See
this.
Parasoul is Tzarina, which is
term used outside of Russian language really and means wife of Tsar. Or female ruler in the country where they're supposed to have a Tsar instead of king or emperor or what have you. In Russian we actually call Tsar's wife Tsaritsa (tsa-REE-tsa, царица), and Tsar's daughter would be Tsarevna (tsa-RYEV-nah, царевна). Notably, last Russain pre-soviet monarch was Tsar, so you can argue that soviet announcer would call Parasoul 'tsarevna', but since she's actually a king's daughter i.e. princess, you are supposed to call her printsessa (preen-TSEHS-sa, принцесса).
Double is
Borscht which indeed is Eastern European soup of Ukrainian origin. It's quite popular and memetic in Russia although I personally don't like it very much, so the idea of calling Double this kinda amused me. On the unrelated note, it's the default soup in Russia, at least as stereotypes go, so far in fact that it's used in sexist jokes (instead of making sandwich) and as example of things good wife should do. Mostly jokingly. Sometimes they refer to good borsh as proof of high cooking skill, but it's kinda stereotypical and there are a lot of people who actually does not like to cook/eat it very much. Me included. Also we're not pronuncing 'T' at the end of the word. We just call it bohrsh with that kind of 'sh' you would say in 'shit'. Cause we actually have two letters for 'sh' =ъ
