Your go to guy for your dick encounters of the sleazy variety. It's not the guy you try to date, its just the guy you call when you want some immediate satisfaction.
It's 2am and I'm drunk and horny, let me call my benedick!!
Like the American General who betrayed the colonies but was ultimately caught, this person is a friend or acquaintance who runs their mouth or betrays you but is caught by you.
Emphasize the dick on it like a Bene-DICK
I heard you stole my lunch money from my lock Benedick Arnold.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.