To break up with someone after consciously exploiting their weakness of being in love, in order to reap the benefits (either materialistic or psychological) of said relationship. Often results in devastation on the affected party.
Allison drew Bill in, got some pretty baubles, and then totally havishamed his ass.
The wierd old bitch in something Charles Dickens wrote. Her husband to be left her at the alter so she stayed in her wedding dress for 70 years. Has a fetish for fucking dead people and watching children play. Generally a fucked up bitch that instead of complaining should be in the kitchen.
Dave: you seen that fucked up hannah bitch?
Steve: yer what a havisham