חפשו מילה כלשהי, כמו the eiffel tower:
 
1.
Verb- When shum is actually leaving your body.

When describing the action of shum being deposited (with the help of gravity) on a surface lower than the orifices of origin.
Oooh, this wild sex with you is so good...oh god...BABY I'M SHUMMING!!

I accidently opened the door and saw him shumming all over the place!
מאת Eric the Terrible 20 בינואר, 2010
 
2.
The act of a ejaculating at the precise moment when a man initiates his bowel movement. This is a very difficult task and should be attempted with great caution.
Dan: Hey dude, is it possible to have an orgasm while pooping?
Joe: I don't know, go try.
Dan: Would that be considered shumming?
Joe: Yes.
מאת Shummer 22 בינואר, 2012
 
3.
The act of shitting out cum explosively.
My girl was shumming all night. It was like an ass cannon.
מאת Hugh Gee Rection 1 בספטמבר, 2007