these are obscene and slang vocabulary

охуеть - 1) to freak out 2) to act brash
охуевать - охуеть in imperfective

пипец - phonetic euphemism of obscene пиздец
пиздец - something extremely intolerable

заебись - excellent, fucking great

ништяк same as заебись

лажа - 1) failure 2) a bad state of affairs

офигенный - rad

рупь - a distorted pronunciation of рубль

отпадно - great


obscene are:

охуеть
охуевать
заебись

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oh didn't take a gander at the links, so they pretty much explain all these, i guess my interpretation is redundant