One who fulfills both of the following requirements:
1) Browses/posts on the /b/ (Random) board of 4chan.org
2) Talks and/or thinks in a manner that is consistent with that of the board.
"/b/tard moar liek /b/awwsum kid amirite fokes"
"Y HELO THAR MR REEDAR!!1"
"OSHI- MY PANTZ R ON FIER LOL!!1"
Noun. A condition where one has diarrhea so often in a short period of time in which they become handicapped and unable to move due to the abuse put on the body having had such powerful toxic elimination in such a violent manner. (sometimes shortened to "Rhea-tard")
Oh my god, last night I drank so much that I woke up this morning having to crap every 10 minutes. My body is in such shock that I am now a Diarrhea-tard!