Lame Ain't an MP3 Encoder
In fact lame is about the best MP3 encoder there is. Useful for music, and for making DivX's
Lame is also a word used to describe things which are, well, lame. Like YourMum.
One who is Lame may also be referred to as a Lamer, although these terminologies are far more frequently used in the Gamer community than the Geek/Linux community.