A person who taps people significantly younger than he/she is. If X is the older person's age then they are a cradle robber if they date a person who is less than half of their age plus 7 years. But for this function to work, X must be greater than or equal to 18. (Y = .5X + 7 X:18,infinity))
Teddy: Is Albert with Evelyn?

Mike: Mos Def

Teddy: What a cradle robber.

Mike: Word
by mike xie February 9, 2007
One who dates someone who is significantly younger than them.
Wow John is a cradle robber, hes a senior and he's dating a girl in 7th grade.
by B-Raff May 30, 2006
a term which is often jokingly targetted to an older partner in a relationship, or, one that lays with those under the age of consent
wow, it looks as if she's robbin' the cradle - they start young now-a-days eh?
by Ilianivich March 15, 2003
When a guy is fucking a pregnant woman and penetrates the baby as she is giving birth
Hurry up and give birth to this baby, i want to be the cradle robber
by Jake Luc September 9, 2007
A sex act when you wait till the bitch's water breaks, then you fuck her in the ass so hard she doesnt realize she's giving birth and you reach around and steal her baby
Cathy: Where's my baby? and where's jesse?

Mike: He must have givin you the San Franciscan cradle robber!!!
by SexualDeviant June 5, 2009