1. (noun) any content on the internet whose humor derives from its surreal nature and/or its lack of clear context. Differs from a meme: whereas a meme's humor comes from its repeatability, a shitpost is funny simply because it isn't a predictable repetition of an existing form. Shitposts can become memes, but memes cannot become shitposts.
2. (verb) to create such a post

A person who shitposts is known as a shitposter

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

To make utterly worthless and inane posts on an internet messageboard.

a very vague term, describing a low quality, troll, or deliberately dumb post

Humorous posts made for the sole purpose of driving people or groups off topic or for no reason at all. Quality of shitposts may be gold or actual shit. Often confused with meme.

1. (verb) 3rd person present: shitposts past tense: shitposted past participle: shitposted present participle: shitposting To make numerous social media or forum posts each of which involve a meme. See also: spam

2. (verb) To derail an online chat conversation with something unrelated and/or off-topic.

3. (noun) plural: shitposts Numerous social media or forum posts with a meme involved.

shitposter
(noun) plural: shitposters A social media or forum user who posts no less than 400 unwanted memes daily on social media or forums.

Making fun of something in a comical manner about something in pop culture.