A type of homosexual intercourse whereby a man inserts his penis into another penis and climaxes inside. Similar to the way snuffleupagus might reproduce in nature. The seemingly impossible biological properties of this act make it all the more pleasurable when actually completed.
Ohhh woha! David just tricked me into watching a video called kids in the sandbox, it looked like a regular adult film until this lady started mushroom stuffing the man with a dildo. I need to go rinse my eyes with drain-o!
To put someone on the mushroom list is to keep them uninformed and to feed them rubbish answers. It comes from the best conditions in which mushrooms flourish "You keep them in the dark and feed them sh.t".
The alias of Tiffany, a member of the Korean girl group, SNSD (Girls' Generation). Notoriously known for mispronouncing her nickname, "Brighter than Jewels" Tiffany, as "Brighter than Mushrooms" Tiffany; hence the nickname "Mushroom Fany." This has caught on with the SNSD fandom and has been adored by fans alike.
Tiffany: Hello! I'm "Brighter than mushrooms" Tiffany!