Transcription (the accent is shown in capital letters):
[kag-DA rak na ga-RYE SVEEST-nyet]
Translation / meaning:
(lit.: when a crayfish wistles on the mountain)
~ when hell freezes over
More from "Russian idioms"
(lit. the watch shows the weather) the watch is faulty
to come off clear, to get away with it
(lit.) in the hairy year a long time ago
(lit. neither fluff nor feather) a wish of good luck to someone that's supposed to be answered with "к чёрту!" (lit. - to the devil)
I have no idea, I haven't the slightest idea, I'm at my wits end
~ to fall upon someone's head (about problems, troubles etc.)
to control someone, to make him/her do everything you say
вот где соба́ка зары́та!