When you have secured an item or objective.
"Hey bro did you get the weed?"
"Yes, the cat's in the cradle."
When your sleeping after sex and your guy still got his dick in you.
"Damn those teens are Weiner cradling again Sheryll!"
When your penis is large enough to be tucked under your balls thus looking like your penis is holding your balls in a basket
Shane: Hey look at my penis it totally makes a St. Mary's Cradle .
Thomas: Put it away you fool, there are women here!
A nickname placed to describe a succubus
Lucifers cradle wont let her boyfriend come drink tonight