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Noun: A penis the size of a pill(generally a capsule not a tablet). This word can be used as an insult to say that someones penis is very, very small.

Adjective: Used to describe someone you do not like.
"At least I don't have a pillcock."

"At least I don't have a pillcock, you fucking pillcock."
by Omedon May 26, 2007
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