the act of masturbation while keeping the hand in operation as cold as possible. The master bater will usually keep a bucket of ice to dunk the free hand in, alternating hands to maintain a nice frosty sensation. Upon ejaculation, the ice creamer will simultaneously dunk their genitals into the ice bucket, thus "icing" their "cream". Screaming is optional, but highly recommended.
Did you hear what happened to that kid?
He got frost bite on his cock from ice-creaming.
No fucking way!
That's right asshole, fucking frostbite.