jpegged (jpegging present tense) is a single word adjective which can be used to describe when an (non-vector) image becomes fuzzy, either from saving the image as a low quality .jpeg file or from repeatedly saving a .jpeg file.
Users of Adobe Photoshop would rather save a .jpeg file straight from the .psd file rather than edit the .jpeg file and save over and over again losing the 'quality' of the image resulting in fuzziness.
Webdesigner: "Don't save the .jpeg file I uploaded on the internet, it's of a lower quality. Instead let me know if you want me to send it to you in an email, to avoid jpegging the image."
Girl: "Oh no I've lost the photoshop file and all I have is this .jpeg image, now the image is going to be all jpegged each time I save it."
JPEGMAFIA is a rapper and singer from Baltimore, Maryland. He is known for songs such as 1539 N. Calvert, BALD! and Free The Frail. He is popular in the experimental rap and hip-hop genre. He is known for his satirical and nihilistattitude.
(adj) Exhibiting the grainy and distorted appearance of a highly compressed JPEG image. Jpegginess begins to be very noticable when an image is compressed more than 20%.
JPEG is a standardized image compression mechanism. JPEG stands for Joint Photographic Experts Group, the original name of the committee that wrote the standard.
A tern used on r/greentext to basically say "this image looks terrible". It summons a bot which turns the image into a JPEG and the more times it's replied to with 'needs more jpeg' the blockier it looks.