When something inserted into a girl's vagina (usually a penis) hits the "back wall" and can't be pushed in any further.

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

To stuff a pie with your cuke to the point where it won't go any deeper.