toot

Mane (Îngilîzî)

Noun

1. (countable) The noise of a horn or whistle.
2. (broadly, countable, informal) A fart; flatus.
3. (slang, uncountable) Cocaine.
4. (countable, slang) A portion of cocaine that a person snorts.
5. (countable, informal, uncountable) A spree of drunkenness.
6. (informal, uncountable) Rubbish; tat.
7. (countable) A message on the social networking software Mastodon.

Verb

1. To stand out, or be prominent.
2. To peep; to look narrowly.
3. To see; to spy.
4. To produce the noise of a horn or whistle.
5. To cause a horn or whistle to produce a noise.
6. (slang) To flatulate.
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).
10. To post a message on a Mastodon instance.

Hevwate

honk

carouse

claxon

beep

bender

whistle

booze-up

hoot

blare

carousal

party

🥳

praise

shindig

shindy

snow

❄️

tootle

trumpet

🎺

white horse

rave-up

whistling sound

cocaine

street drug

nose candy

white lady

Bolivian marching powder

bash

yola

binge

blast

blow

boast

boom

💥

brawl

bugle

coca

coke

Werger

klaxonner

tuten

bocinazo

corner

pouët

blasen

κορνάρω

هتف

😢

كوكايين

بوق

🎺

نفخ في بوق

صفر في أذنه

صفر بالزامور

أطلق بصوت عالي

زَمَّرَ

Wekî (IPA) tê bilêvkirin

/tuːt/

Etîmolojî (Îngilîzî)

Hevwate bi holendî: toeteren

Hevwate bi almanî: tuten

In summary

Probably onomatopoeic in origin. Compare Dutch toeteren (“to blow a horn”), German tuten, Swedish tuta, Danish tude.
Noun sense 7 ("Mastodon post") and verb sense 10 ("to post on Mastodon") are influenced by tweet (“Twitter post”).