Relating to the term "osmosis" when molecules pass through one cell to another via the call membrane, cosbmosis is the act of passing
fecal matter from one person to the other through their
dickhole via
anal sex.
Big Easy: Yea, so, I, uh, I wouldn't
recommend having anal sex if you have not already tried yet.
Tyrantula: Yea why is that?
Big Easy: While I was plugging that hole up, the nachos supreme she had earlier came
right out and into my dick filling it up like it was a syringe of diarrhea.
Tyrantula: Didn't you pay
attention in bioLOGy? You just went through cosbmosis.