An ugly fat girl...often one who thinks they are stunning and is plastered in make up. Which is so thick it is hard...hence the "rock".
"look at her, she's a rock monster"
ayon kay ants ika-14 ng Pebrero, 2005
one willing to do any thang possible and sometimes not to obtain crack.
Don't leave your house unlocked or the rock monsters will clean it out.
ayon kay Slow Dragon ika-17 ng Pebrero, 2004
A really bad crackwhore!
"yo son i gave a rock to that rockmonster down the street and she sucked my dick for it but it wasn't as good as a normal crackwhore because she is a rockmonster."
ayon kay White foolio ika-29 ng Marso, 2004