Someone or something that is lame, although someone who uses the word 'lamer' would definatly not use the word 'lame'. The person in question is normally a fool, and very very annoying.
In a counter-strike server.
*dead*Player1:"I hate th is game, i jusst spent 3 hrs dwnlding a new patch n its still crap, and every1 cheets.
*dead*Afk | kestrel:"Don't play then"
*dead*Player1:"I wnna know how to hack, someone teach me"
*dead*Afk | Kestrel:"Type in your console 'bind mouse1 kill' and you'll kill everyone you fire at"
*dead*Player1:"How do i get down my consol"
*dead*Afk | Kestrel:"the key to the left of '1'"
(A few moments pass)
(The round restarts)
Afk | Kestrel:"Lamer..."