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Deliberate or ironic misspelling of "poster," meaning a twitter user. Noun.
Alternative forms of the word include poast (n) – a misspelling of "post", referring to tweets.

It can be appended as a suffix behind other words, such as shitpoaster (n) or shitpoasting (v).
Trump was irritating, sure, but you can't deny he was perhaps this hellsite's greatest poaster
Poaster by joy8374(2 April 24, 2021
Related Words

Poosaster 

A combination of Poo and Disaster. Any type of awkward social situation precipitated by the presence of feces.
"I shat my pants at the party. It was a poosaster!"

posester 

Pronounced POSE-ster. What hipsters really are. Though they put on the airs of being members of the illuminati (see the definition of hipster in Urban Dictionary), they are really just clones, wearing a uniform that is no different that any other, expresses no individuality, and is screaming hypocrisy. They have taken over previously cool neighborhoods like the Mission District in San Francisco. Though their clothing appears from a thrift shop, it is really from a 'vintage' clothing store, at best, or an over-priced chic shop trafficking in poser wear. Though they want to appear free thinking, they gravitate toward sameness. Their obsession with the latest e-gadgetry exemplifies their vacuous nature. Though they claim to be into a simple existence, they have driven up the cost of housing in previously cool urban areas. Though they work in Silicon Valley or similar areas, they 'reverse commute' in plush e-busses FROM the City. They are the same as preppy yuppies from the early 80's, just a different uniform, so their hypocritical nature makes them 'posesters.'
I really miss living in the City. So much to do, nooks and crannies, just a great mix of all kinds of folks.

Ya, me, too. But I had to leave, it has really changed. The posesters have taken over. Even the Mission. It's like Cow Hollow now, just in drab.

No . . . !!!!
posester by The Original Tankboy February 14, 2014

Poaststroos 

The word you get when you try to type "potatoes" with one hand.
A - "What should our team name be?"
B - "Poaststroos."
B - "*potatoes."
A - "Poaststroos it is."
Poaststroos by Itsmybday March 27, 2021
Same as post or posting as a message or a commentary posted on an internet forum. Poast instead of post follows the same pattern of transcribing "ou" diphthong as "oa" as in moar instead of more.
First Poast! (First commentary to the original post)
Poast by gayskunk January 4, 2008
In the realm of interwebs, there are posts and there are poasts. A post can only become a poast once it has reached the relative hotness of toast. In other words, if it is popular.
Yeah! That's a really great poast!
poast by Akaleus July 29, 2011
More from Urban Dictionary
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026

Northstarring

Finding your way back to the truth by fixing on one verified fact and working out from there, the way you navigate by the North Star when everything around you is spinning.
Rumours were flying everywhere, so she went northstarring — one checked fact at a time.
Northstarring by Light Bearer October 22, 2026
Word of the Day on October 23, 2026

Plate of Brown 

A plate of brown consists of foods that have little to no nutritional value, and are typically deep fried. A true plate of brown will also be accompanied by a dark soda.
Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
Word of the Day on October 22, 2026

Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
Larpenomics by Rbois09 October 21, 2026
Word of the Day on October 21, 2026
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