A person that should be a subject of derision or mockery. Also, an inedible fungus.
Really, don't even try to make a comeback, you toadstool.

You have never, will never have sex with my mom. Don't be a toadstool.

Be careful about eating toadstools.
by drillvoice August 22, 2005
Something you NEVER see a toad sitting on
Have you ever seen a toad on a toadstool?
Me neither.
by Mystic_Snowfang August 6, 2008
The surname of Princess Peach from the Mario series
Dear Mario, please come to the castle, I've baked a cake for you, yours truly, Princess Toadstool, Peach
by Metallicajunkie October 9, 2018
Girl 1: I finally slept with that tall guy and he was equipped with a short fat stump.

Girl 2: Ah, another victim of the toadstool.
by barbiesboobs December 16, 2011
the spore-bearing fruiting body of a fungus, typically in the form of a rounded cap on a stalk, especially one that is believed to be inedible or poisonous.
Joseph: "Hey, Nick."
Joseph: "Can I eat toadstool?"
Nick: "No, we can't eat toadstool."
Joseph: "Why?"
Nick: "Mushroom poisoning, also called toadstool poisoning, toxic, sometimes fatal, effect of eating poisonous mushrooms."
by /gamerule keepinventory true December 4, 2020
When you take a crap in a toilet on top of toilet paper so that the crap sits on the paper like a toad... Toadstooling! AKA Lilypadding.
Dude, left the biggest toadstool in the faculty bathroom this morning!
by ScotchRox August 31, 2018
The begining part of Cinderella’s transformation dress
Ohmigod look at Cinderella, she looks like a f****** toadstool
by Sennarella22 January 15, 2019