General term for a total disgusting arse. Often used as a meterphor as if the said rampo where in fact to exist.
Rampo is in fact a character in swiss mythology , who walked into a small town, became ingaged in a peadophiliac sexual act with a young boy and thus spread his foul deseases to the whole village. All of whom died.
Guy 1: " christ thats jus wrong , why! WHY!i think im gonna be sick"
Guy 2: "ahh man, must be rampo"