Grand Guignol
noun
Grand Gui·gnol ˌgräⁿ-gēn-ˈyȯl 
-ˈyōl
: dramatic entertainment featuring the gruesome or horrible
Grand Guignol adjective
Word History
Etymology
Le Grand Guignol, small theater in Montmartre, Paris, that specialized in such performances
First Known Use
1905, in the meaning defined above