Блин, йа креведко!
Krivetko.jpg
jacksparrow_krivetko.jpg
cthulhu_krevedko.jpg
Just in case you've never seen this Ru.net meme, the deliberately misspelled "Йа креветко!" could be translated something like "D'oh, I is such a stoopid shremp!" (Meaning, basically, "Извини, я не в курсе" -- "Sorry, I'm not up to speed; I don't understand the situation/discussion.")
And the phrase is very often seen together with two other memes: parodies of Lovecraft's "Cthulhu", and "Preved Medved!!", as in the third image.