It means anything you wish it to mean, but usually pertains to liking or enjoying something. Gurl can be replace with any other object such as locker or Locka.
Luv Ya Girl!
Luv Ya Locka!

Julia: Wanna come over to my locker?
HugeVag: No, but, LUV YA GURL!
Julia: Jake!
Jake: Julia:
Julia: Luv ya GURL!
Jake: Luv ya GURL!

by MoLay Lay April 3, 2007
Get the Luv ya Gurl! mug.