Having sex with exes in order to keep your partner count down.

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.

In the S&M world, when a Dominatrix has her sub-male swallow his own cum.

Verb - The act of urinating in another's mouth, in turn, giving them the urge to urinate, which they do into your mouth. This process continues back and forth until hospitalization.

When smoking, you blow the smoke out of your mouth, and then immediantly breath it through your nose again, thereby recycling your smoke over again.

Something Captain planet tells you to do to save the environment (to do the above)