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A man who has difficulty achieving an erection without wearing some article of women's clothing is sometimes referred to as a "silkworm."
"My new boyfriend is rich and handsome, but he is a closet silkworm."
by running out of patience April 16, 2008
1) Women who slither though your soul and sucking acid through your heart.
2) A Parasite
by DillonD December 19, 2008
When a male covers his penis in cotton candy.
(Woman) "Darling, look away! That man is silkwormin!"

(Girl) "What?"
by CarnivalPerve March 20, 2010
Slang term for the streams of semen a man will sometimes leave on a woman after having sex with her.
"Oh man, I left silkworms all over her face last night!
by Michael A Kerni January 28, 2007