You are completely ignorant. Just because you don't like a particular type of music, that doesn't make it monkey ****. I don't like rock, alternative, or anything other than rap, but I feel no need to call that particular type of music that. When you make fun of rap, you also make fun of the culture that made it. Stop being so ignorant. Seriously, I can't stand people like you.
For the most part mainstream rap isn't about rapping anymore. It's either about money, cars, hoes, sex, drugs, etc. There is no meaning behind rap anymore in the mainstream artists, and that includes Eminem. He is a great artist, and one of the best rappers ever, however, he does not make good rap music. His beats are good, but that's not the essence of rap. Hip Hop and Rap originated and centered around MEANINGFUL things. Look at Eminems new album.. He puts in farting and burping noises throughout every song almost ont he album.
Underground rap has more meaningful lyricism, to hell with the beat. I agree with 50 cent. He's crap. He can't rap, and he can't make beats. He's only a showman to help commercialize the rap industry more.
If you want good rap and meaningful lyrics, the best artists for that are
Tupac
Nas
Papoose
Immortal Technique