Often used to express slight amusement at someone's attempt at humor which clearly wasn't worthy of a mere 'lol'.
Is becoming increasingly used in various internet cliques to satire the ridiculous and contrived nature of various acronyms used in Internet pop culture.
Da Vinci's Cradle (DVC) is the sensational feeling of euphoria and ecstasy in a man's genitals that occurs during extreme falls and especially thrill rides at theme parks.
"Oh hell yes, that ride gave me extreme Da Vinci's Cradle!
Typically, older man and younger women, but not always.
"I want to rob the cradle, I want to trade my 40 year old wife in for two twenty year olds"
For example, further than 5 years apart in age might signal a cradle-robbing". Even more years yells it!