A form of BDSM where a male repeatedly wraps a rubber band around the bottom of the head of the penis in order to gratify himself. This action begins to shrink this area, making the head seem bigger and thus, making the penis look similar to a mushroom.
1) âDid you hear that Brayden got caught shrooming during class because he passed out from his circulation being cut off?â
2) âIâm sorry, but your fatherâs over-shrooming ultimately resulted in a blood clot which stopped his blood flow and killed him.â