number whore 

a female who cotinuously gives out her number to every guy she meets

Beth: Where's Becca?
Sarah: Oh, she stayed back to give that guy her number
Beth: She's such a number whore

number whore by trogdor0086 October 17, 2009

numberwhore

A person with an uncanny but mostly useless ability to remember long strings of account numbers, phone numbers of elementary schoolmates, and/or the SSNs of siblings or exes

Jennifer: Hey, you remember that guy we met 9 years ago at the beach? I wish I could remember his number. He was cute.
Lisa: It's 555-867-5309. You're so lucky I'm a numberwhore.

numberwhore by jezebel73 October 8, 2009