Images, short videos or animations usually sent via instant messaging or e-mail that are not allowed to be posted in an online forum due to improper content.
Usually "unposties" are of adult content, or of a controversial nature that may affect the sensibilities of some readers.
A vacationer comes back from with pictures of the beaches and the swimmers in various stages of attire, some without much attire at all. The vacationer upon his return puts a picture or two of the beach on his favorite forum without any showing too much skin... then he says he'll send the "unposties" to anyone that requests them.
An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"
Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.
B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.
B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*