tb;do

Literally, "Too big; didn't open" Said whenever a noob makes a post with an attached image that is too big to bother downloading to view in full size, specially on an image board like 4chan, instead of resizing it to a more practical size. Usually implies that the person using it tried to open the image in full size but immediatly stopped the download after a couple of seconds of said image slowly appearing 90' style because it wasn't worth the wait (judgement made on the thumbnail) or as a protest against such an unrespectful behaviour. When informed of his mistake, the noob will usually comment in a derogative tone on the internet connection of the protesters.