mastodon

mastodon is, besides an extinct mammal and a metal band, a decentralized open-source social media tool. If I'm understanding it correctly, there are a lot of different servers running mastodon software. These are called instances. People with accounts on one instance can interact with people on other instances. All these instances together are called a federation. It seems to be particulary popular with people who are fed up with twitter, because of it's lack of ads and increased discourse between people running the instances and people using it. It also seems to be popular among japanese people, for two of the biggest instances are japanese language, one of which is hosted by pixiv.
It is also possible to host a private mastodon instance that is invisible to outsiders. This could prove very helpful for companies.

OFFICIAL WEBSITE: joinmastodon DOT org
POPULAR INSTANCE: mastodon DOT social
VIDEO EXPLANATION (OFFICIAL): youtu DOT be/IPSbNdBmWKE

hey have you heard of mastodon? You can easily find your twitter mutuals if they've connected their accounts.

by I like mastodon August 21, 2018

John Mastodon

The bravest and richest of humans. Works on teleportation for everyone and world peace. The inventor of Mastodon. Started out as a hungry child on the south pole, worked his way up in the world to become the richest man in the universe, later married to Joan Mastodon, the richest person in the universe. Only rides electric bikes. Has a pet frog named Thomas.

John Mastodon saved the world with his teleporting tech

by Marin Fowler December 19, 2022

Mastodon Hose

n. A very large penis.

I saw no way he was going to fit his Mastodon Hose inside me. Huge!

by saint_adventure October 3, 2014

Mastodon Rage

To be so filled with seething angst and rage, your only thought is to utter a gutteral growl, like a Mastodon.

Teacher: "Timmy, you have failed the test..."

Student: "URRRRRRRRRRRRG!!!!"

Teacher: <Blown Away>
<A Prime example of a Mastodon Rage situation>

by Aut0matic M16 April 5, 2010

Mastodon Tits

MASSIVE tits. Boobs of such grand proportions that they could knock someone out if the women possessing turns around too fast. You can hear the milk swooshing within the tits because there is so much extra space within.

Don't get too close when you surprise her, if she spins too fast and you're within range of the Mastodon Tits, they'll send you to the moon!

by eggnog superstar November 24, 2012

Mastodon

That app that somehow lets illegal content of children slide, and many people discussed about the content.

"Mastodon is full of creeps"

by XsavierLOL June 25, 2025

Mastodoning

When a man another man with a strap on dildo while masturbating both his and his partners penis.

Yo Billy was mastodoning me last night and the whole bottom half of my body is numb.

by Mastodonmaster May 11, 2017