1 definition by Ryno69

The "mould" growing under the foreskin of an uncircumcised penis.
Usually derived from lack of hygiene or self interaction.
Once developed, quite difficult to clean out and rid without pain.
Person 1: Ugh, my penis is so itchy.

Person 2: Dude, check it for a cheese beanie, you've probably got one spawning.

Person 1: What's a cheese beanie? I might go to urban dictionary and find out.
by Ryno69 May 22, 2009
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