Swedish person incessantly dumb, ergo retarded.
Typically used for swedish people who are new to the internet, and computers and have no idea how to handle them. Your average swetard is fanatical about the game 'World Of Warcraft' and lets it consume their life, rejecting even their closest friends to frolic in its polygons.
Swetard: I love WoW and think its better than rl
1337Brit: oh gawd its a swetard. *facepalm