My first mastodon post. What are they called anyway?
@lmoroney Instead of tweets, you’ll write a “toot.” Or a “noot,” “awoo,” and so on — some instances use their own lingo for their version of tweets. A retweet is a “boost,” and a like is a “favourite.” https://www.theverge.com/2017/4/7/15183128/mastodon-open-source-twitter-clone-how-to-use
A beginner’s guide to Mastodon, the hot new open-source Twitter clone

Toot your own horn

The Verge
@lmoroney It has a long history and the answer is quite interesting- https://gizmodo.com/mastodon-toot-retired-twitter-tweet-equivalent-1849786221
Mastodon Has Officially Retired the 'Toot,' Its Version of the Tweet

Not everyone is pleased with the decision to change "toot" to "publish," but many third-party apps are continuing to use the original term for posts anyway.

Gizmodo