toot

Etymology 1

Probably onomatopoeic in origin, compare Dutch toeteren (“to blow a horn”) and German tuten (“to blow a horn”).

noun

1. The noise of a horn or whistle.
   He gave a little toot of the horn, to get their attention.
2. (by extension, informal) A fart; flatus.
3. (uncountable, slang) Cocaine.
4. (countable, slang) A portion of cocaine that a person snorts.
   So he took a toot. A couple of days later he did another, then another. Soon Harry was using more coke than he had done in his whole life. 1981, New York Magazine, volume 14, number 35, page 30
5. (informal) A spree of drunkenness.
6. (informal, uncountable, pronounced /tʊt/) Rubbish; tat.
   I'm not paying fifty pounds for this load of old toot!
7. (social media) A message on the social networking software Mastodon.
   As for layout, Mastodon feels a little like TweetDeck, with columns for your toots, toots from the people you follow, your mentions, and (unlike Twitter) a timeline of all public posts being shared by every user on the platform. April 4, 2017, Madison Malone Kircher, “What the Heck Is Mastodon, and Why Is Everyone Talking About It?”, in New York Magazine
   Interestingly, Mastodon offers a bit more in that aspect for toots can be 500 characters long. April 5, 2017, “Mastodon is here; will you stop tweeting and start tooting?”, in The Indian Express
   Mastodon users can send toots with 500 characters as opposed to Twitter's 140. But that's not the only difference. Individual toots can be marked as private, meaning you don't have to choose between a public or a private account like on Twitter. April 5, 2017, Jack Morse, “Bye, Twitter. All the cool kids are migrating to Mastodon”, in Mashable Australia
   So if I follow Nick, his toots (yep, they're called toots) will show up in wandering.shop's federated timeline. Aug 24, 2018, Beth Skwarecki, “A Beginner's Guide to Mastodon”, in Lifehacker

verb

1. To stand out, or be prominent.
   Now rise up, Master Huddypeke, Your tail toteth out behind. 1519, John Rastell, Four Elements
2. To peep; to look narrowly.
   November 9, 1550, Hugh Latimer, A Sermon preached at Stamford In the court, in the noblemen's houses, at every merchant's house, those Observants were spying, tooting, and looking, watching and prying, what they might hear or see against the see of Rome.
   Long wandering up and downe the land, With bowe and bolts in either hand, For birds in bushes tooting. 1579, Edmund Spenser, The Shepheardes Calender
3. To see; to spy.
4. (slang) To flatulate.
5. To make the sound of a horn or whistle.
   The island rang, as yet, with the tooting horns and rattling teams of mail-coaches. 1855, William Makepeace Thackeray, The Newcomes
6. To cause a horn or whistle to make its sound.
7. (intransitive) Of a queen bee: to make a high-pitched sound during certain stages of development.
8. (slang) To go on a drinking binge.
9. (slang) To snort (a recreational drug).
   I had graduated from the simple tooting cocaine up my nose to smoking it, which was a completely different experience and animal. 2008, Robert L. Glover, Street Corner Symphony: An American Story, page 65
10. (Internet) To post a message on a Mastodon instance (a self-hosted version of the networking software).
    (see title) April 5, 2017, “Mastodon is here; will you stop tweeting and start tooting?”, in The Indian Express
    Only want to toot in the Animal Rights instance? You can create an account there and do that. April 5, 2017, Jack Morse, “Bye, Twitter. All the cool kids are migrating to Mastodon”, in Mashable Australia
    One alternative to Fist is Mastodon, which looks and behaves a bit like Twitter (you don’t tweet, you “toot”). February 8, 2018, Marie Boran, “Why tweet when you can toot on Mastodon”, in The Irish Times
    Each instance has its own administrator and its own code of conduct, so make sure you read up before you toot. Aug 24, 2018, Beth Skwarecki, “A Beginner's Guide to Mastodon”, in Lifehacker

Etymology 2

Perhaps a contraction of toilet.

noun

1. (Australia, slang) A toilet.