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A keyboard that has the visual appearance of being "frosted" in some areas due to an individual using Instant messenger while watching/ and or right after watching pornographic imagery whilst pleasuring themselves. the gradual buildup of residue can be described as "frosting"
You should'nt watch porn and use chat, you'll get a Frosty keyboard!

i should really clean my keyboard, its got a nice layer of Frosting over it

Dave offered to lend me his keyboard, but i declined because it was Frosted
by madd-monkey February 16, 2011