Murk is used to describe a person that typicaly has intimate relationship with your mother and is 190cm or 6.2 feet tall. He is mostly known for his famous line "jebem ti mater", but is also famous for "picka ti materna", "fuki se", "FAKING", "posilu ti bom mami" and more.
Murk also has a brother that is infact older than he is and does like to fuck your mom as well.
Guy: Murk fucked my mom
Guy 2: Yours too?
Guy 3: They've all been Murked