The “Dread Gazebo” is one of those inside jokes that everybody in the D&D/RPG community is supposed to know, but that makes it really hard to actually learn. Everyone references it, but nobody actually tells the original story. I played D&D for years before I got up the nerve to ask why everyone made jokes about gazebos.
Just in case any of my followers my be in the boat. Here’s a link to the original story.
The gazebo story is a DnD classic. So classic I cannot even remember where I encountered it first, was it Dragon Magazine or early Internet? I dunno… but Gazebos have lore.
Never attack a Gazebo.