A person that constantly speeds up and slows down... then speeds up and slows down, causing traffic to act like a slinky being dragged across the floor.
"That Slinky driver needs to pick a damn speed. Yes, your brakes are still there.. Oh.. found your gas pedal again I see"
by jwalker8680 September 25, 2019

When your having sex on opiates and your dick starts to go slightly limp but is still in action. Hence Cock Slinky.
by Mikis January 2, 2015

by Pom Fucker April 23, 2022

by TOomp March 11, 2021

by Another white guy with money January 17, 2022

me: "Jesus Christ my cock feels like Satans titties!!!!!"
Bro: " Shit, thats called a Slinky Dinky, bro!"
Bro: " Shit, thats called a Slinky Dinky, bro!"
by 6e5tdf5r6tuyiyg December 19, 2019

by sinkman September 25, 2018
