Someone, male or female, who uses time at work to write e-mails, be on IM, and/or check Facebook, MySpace, etc., thereby getting paid to engage in such non-work-related online activity.
Guy 1: "B only sends emails and IMs me between the hours of 8am and 5pm, Monday through Friday. What's up with that?"
Guy 2: "Maybe she just prefers to get paid to do those things...sounds like she's an e-hooker."
A chick who starts to get all hot and heavy with a guy but than has a change of heart and doesn't follow through with getting the guy off, even after, but not necessarily, he has gotten her off.