It’s when the base of the light saber swells to ensure a secure fit and all the sperm babies get injected in properly with no waste ε=ε=(ノ≧∇≦)ノ
Basically just go read about how wolves mate
Like someone said the penis basically swells up and plug it's self inside. To keep the sperm from coming out to soon. Increasing the chance of pregnancy.You can't pull it out until the alpha ejaculates. Once the alpha has ejaculated depending on the author technically it will still remain lock inside whomever until a few hours later. Which then the penis will begin to soften and deflate. It supposedly hurts feels like your insides are ripping.
Damn this explanation hahahahah
basically ╮(￣▽￣)╭
What does knotting mean again im not an expert