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1.
A thick, pretty girl who's very shy until you get to know her then she's crazy she has many friends because she's nice but don't take no mess so she'll dogg you real quick always tryna get more friends everyone knows he and everyone loves her she's all around a great, beautiful person
Simone- What's her name she's so pretty, but she shy,

Gabrielle- Haha that's Christal, she is pretty but she def not shy and she'll dogg somebody Quick af
by MDloveerocks February 17, 2011
 
2.
a girl with extremely big boobs
That girl has some christal boobs
by ALLiEROCKSZ November 19, 2007
 
3.
Someone who is constantly making sex jokes and being extremely loud while doing so. Makes the people around them quite uncomfortable.
Peter: "Do you know that Christal girl?"
Rebeca: How could i not? Shes so fucking loud, all i hear is 'penis!' during class."
by Pacheco?! June 09, 2009