Explitives (Re: Дерьмо!)
Note the use of the Russian explitive 'Дурак' by the young boy wearing the backwords 'Thor' helmet. Russian Slang & Colloquial Expressions lists the following entry:
Дурак, -а, m., rude. The male genitals (lit., a fool). [У нело дурак еле в нлавках номещаемся.] "His equipment hardly fits into his swimming trunks."
Observe its use:
Edit: Whoops! It's the red headed girl that uses the word!