JPEG is a standardized image compression mechanism. JPEG stands for Joint Photographic Experts Group, the original name of the committee that wrote the standard.

The last name of several geek's girlfriends.

1) (noun) A format for compressed digital pictures.
2) (noun) An image file that uses the jpeg format

1. A peg shaped like the letter J.
2. An image type that condences and fuzzes up each time it is saved.