'Klwned' is similer to pwned, in that people are made fun of/look stupid. To be klwned is to pwn oneself, making a complete idiot of yourself. People usually klwn on a BBS such as the one at newgrounds.com.
Person 1: we make fun of windows cos of its lack of reliability, the mac is WAAAAAAT more reliable
Person 2: lol klwned.
Person 2: lol klwned.
by -liam- September 10, 2005