A stupid version of the word "sexy" with the suffix "full" added on to it, probably by someone with way too much time on their hands in a failed attempt at individuality.
the chav's way of saying sexy. You can always tell if someone's a chav wen you look on myspace and facebox because their provile alsways starts with shexi. shexi_babii or shexi_biatch, it's so retarded,
Chantelle: dat boi ova there is propa shexi int e?
Kelsey: yeh,just lyk me, shexi, hot lil byach innit!
