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

Mastodon

Used to proclaim oneself as being totally manly, usually after having performed an amazing feat.

"Did you see that goal, I'm a total mastodon!!"

by Junkyard Dog July 1, 2004

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

mastodog

A name for a very big dog.

Person 1: Whoa did you see that giant dog?

Person 2: Yeah its a fricken mastodog.

by dodongo56 May 9, 2010

Mastodon

A prehistoric elephant that was a close cousin of the elephants and mammoths. It probably fed on leaves from trees and bushes.

I know of the mastodon because of Denali (the mastodon character from the old Gumby cartoons).

by Nordicdragon June 27, 2018

mastodorsotribus

the rubbing or friction of a woman's boobs against the back of a man as when the woman is riding behind the man on a motorbike or when the woman is standing behind the man in a crowded bus.

He is a sort of guy who would enjoy mastodorsotribus while travelling standing on crowded public transportation.

by uttam maharjan July 21, 2010

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