Moderately weird. A rare form of bdsm I like is punching the abdomen (giving, receiving). And a physical feature I like that few people do are well defined armpits. I don’t think that falls into the extremely weird category, but I don’t know.
I think I'm in the moderately weird category, I love glue bondage. I use contact cement to glue extremely high heels on to my feet so I'm forced to wear them for a few days. That expanding foam works well for thigh high boots.