Dick slack is a noun used to refer to the uselessness of another person. For example, when someone isn't pulling their weight at work, you refer to this as "dick slack". One should never put up with dick slack.
To be a Slick-dick is to send a gift to your loved one that coincidentally arrives with near perfect timing. Not something that you planned, but nonetheless something that enhances the overall experience for your partner.
In this instance the appearance of being slick would be unjustified, thus you're a Slick-dick.
Stuart sending an Easter egg making kit to Susie for her April birthday made him a "dick". Sending rollerskates that arrived just as her existing plans unravelled made Stuart a "Slick-dick".
An offensive term used to insult someone for being sneaky or slick. Occasionally used as flattery to describe a male player who sleeps with multiple women.
a rare, probably never been done sexual manuver when the guy is fucking a girl in the ass bareback from behind and without warning pulls out and sticks his shit lubed cock in her pussy, while raising his hands in peace signs akin to richard nixson and saying "i am not a crook"
person 1"dude dan was fucking sandy last night and he pulled off a silverdale slick dick"