hard limit
What does hard limit mean?
A hard limit is an absolute no. It's the activity you will not do under any circumstances, with anyone, ever — off the table before negotiation even starts. Could be a specific act, a body area, a theme, anything. The deal is simple: hard limits are stated up front and respected without argument. Pushing someone past a hard limit isn't kink, it's a violation. Contrast with a soft limit, which has more give to it.
Origin
BDSM negotiation vocabulary distinguishing absolute boundaries (hard) from flexible ones (soft); formalised in community limits-checklist culture.