The phrase "bizarre rituals" refers to unusual or strange types of ceremonies or practices that may seem unusual or out of the ordinary to most people. Full definition
But ominous situations and bizarre rituals make that task incredibly difficult. (gamesauce.biz)
One's imagination runs away with notions of bizarre rituals enacted in fictional lands where mythical creatures dot the landscape and a fantastically - garbed man may take a walk with a head on a stick. (contemporaryartsociety.org)
On her latest case, Kerrigan faces a serial killer who performs bizarre rituals on his victims — after he kills them. (bookpage.com)