A Mallory is much like a breast but belongs on the back rather than the front of a voluptuous woman. A woman with so much additional "plumage" that she possesses soft, mammary like glands behind the shoulder blades.
Bucks: "Wow, look at the mallories on that sweet piece of crumpet, I'd wouldn't mind motorboating those"
Clemtech "you're right big fella, those are some sweet, sweet mallories, I do love me a mallory or two"
The act of "popping" ones ball or balls (depending on elasticity) into one's partner anus and then requesting for them to clench. Once restrained in this manner the only "key" is a good push hopefully not dislodging any foreign matter other than your testicle/s
"Man why are you walkin funny?"
"That chick at the cafe we saw yesterday didn't want to let me go so she restrained me with her chocolate handcuffs! I'm gunna be out of action for a few days."