A term used by silly people (femcels) that means to cut yourself. This term is used to make it sound more silly and less serious as a way to cope with the feelings and actions of self harming. If someone talks about sillyslicing, you should give them lots of snuggles and cuddles!
I’ve been thinking about doing the sillyslice for a couple days now, but I don’t wanna relapse… *sigh* >~<