British slang
Yet another coined term meaning the contents of the testicles.
However "plaster of penis" is usually too wordy to actually thread into a sentence and so is never often used as a metaphor for come/cum.
"Fredrick the novelist was having enormous trouble including 'Plaster of Penis' into his pornographic literature, as it spoiled the rhythm of his sentence structure."
"Father MacDougall made a tissue sculpture using plaster of penis as his glue."
by Stuart Fletcher November 03, 2004

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Top Definition
Semen that accidentally lands on a strand of hair, drying up and coating it, rendering it stiff.
Last night my boyfriend totally ruined my hairstyle and now big chunks are set in Plaster of Penis
by simikis October 01, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt