Slang (from English).
В 3 часа ночи над тетрадками с сочинениями сидит учитель по русскому языку, до ужаса затр@ханный падонковским сленгом подопечных.
At 3 in the morning a Russian language teacher is going through the essays in the exercise books, frightened silly by the scumbags’ slang of his pupils.