The phrase "gory details" means giving vivid and graphic descriptions or information about something, usually related to violence, bloodshed, or disturbing events.
Sentences with «gory details»
Teenagers absolutely do not need gory details of what went wrong in their parents» marriage, just that they are not the central cause of the family breakup. (divorcemed.com)
Ray pointed you to an article in a top journal, indeed two years old at the time, where the thing that was supposedly being hidden was being explained in gory detail for all the world to see. (realclimate.org)
Before we delve into gory details, however, a big word in defence of fungi. (newscientist.com)