When your having sex on opiates and your dick starts to go slightly limp but is still in action. Hence Cock Slinky.
Girlfriend: Whats goin on babe?
Me/You: Hold on babe I got Cock Slinky
by Mikis January 3, 2015
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A type of cock that can be stretched out to a certain length more than an average cock can
yo bro he’s so lucky he has one of those slinky cocks
by daddycoley March 20, 2019
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