Derived from the concept of Stockholm Syndrome, it is used to describe the mental state of someone that has become overly attached to, and obsessed with, the person they have just recently had sex with. This is most prominent in people that have just had sex for the first time.
"Man, Shelly finally lost her V-card to Mike, but now she won't leave him alone. Total case of fuckholm syndrome."
by Super Ghoul January 30, 2014