1. To treat someone with a lack of affection or warmth. In this usage, a noun or pronoun can be used between "ice" and "out." I don't understand why Nelle is icing me out like this—what did I ever do to her?
2. slang To embellish something with diamonds. Did you see that rock he got her? Her finger is totally iced out now!
To cover or decorate something with diamonds: The medallion was completely iced out. The performers went to the jewelry store and iced out their wrists.
mod. wearing lots of diamonds (see also ice (sense 1).) That dude is really iced out!