Noun. A Holding Kink is a section of Omorashi. Someone with a Holding Kink finds pleasure in holding urine in their bladder and/or having the sensation of needing to urinate for
long periods of time.
Sometimes it is used by power-play partners where one (usually the
sub) is not allowed to use the restroom until the other (usually the
dom) says so.
People with this kink like it for various reasons. It could be they like the relief from getting to urinate, the amount of power their partner has over them, the extra pressure it gives, etc.