Top definition
The act of shoving marshmellows up one's asshole by the ton.
I started marshmellowing a couple years ago and became addicted. It's like I'm eating marshmellows with my bunghole.
by El Poopstersaurus December 28, 2017
Happy St. Patties Day!
Using the stickiness of marshmellows to jerk off.
Damn Zach, I was gonna make smores! But now I can't, because you have been marshmellowing!
by noo_username July 14, 2015
Happy St. Patties Day!