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When one slams their penis in a door, and then screams and runs from the pain, elongating their penis. The act is also done by Manjo players looking to fine tune their instrument
Henry carefully did the slinky dinky in order to fine tune his manjo
by venom4789 June 03, 2017
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2
Adjective. An elongated limp johnson.
A penis which is no longer erect due to poor choice in arousal.
After realizing Jane was butt ass ugly, Tom was left with a slinky dinky.
by Battlecock April 21, 2017
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