A delusion in which narcissistic and vain young women believe that every male they come into contact with is either flirting or is in love with them.
Jessica: "Did you see that guy staring at me? He must have a hard-on for me!"

Tim: "Jess, you suffer from herotomania. He was staring at that booger hanging out of your nose."
by madskills69 July 13, 2010

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