What is Mushroom Cap?
1.
When the tip of the penis is so large and the shaft is so thin, it looks like a mushroom cap.
Condoms feel weird on me because of my large mushroom cap.
2.
When the head of the penis is a lot larger the the shaft. Resulting in what looks like the top of a mushroom.
Charlie soon realized that condoms felt odd on his mushroom cap.
3.
an asshole, dickhead
dude don't be such a mushroom cap
See
