What is "gorko!"

Gorko! ( Russian: Горько!) is a 2013 Russian film directed by Zhora Kryzhovnikov and produced by Timur Bekmambetov, Ilya Burets, Dmitry Nelidov, Sergey Svetlakov. The movie is a wedding comedy. Natasha and Roma — these two characters are the protagonists of the film who are progressive and talented and dream to organize their wedding by the sea in Europe.