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."
the smallest penis known to man only one person other then a baby jew has this and his name is Joe. the person with the biggest penis discovered this and joe has been made fun of ever since what a maroon
wow joe you have a baby jew penis.
Is that a dick or a vagina?
"must be a baby jew penis."