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1.
The act of masterbation after a period of time where inadequate personal hygiene results in an accumulation of smegma in the mammalian genitals, causing a "snowstorm" effect to occur.

Aptly co-termed: "dick-blizzard".
"Have we got any icing sugar?", she enquired.
"...Give me a minute, I've got a crumbshaker brewing".
by RaddickRam&etharrrn May 14, 2013