1. Telling someone that you go (went) to Harvard. Usually used in the phrase "to drop the h-bomb." It is a generally accepted principle of dropping the h-bomb that when a guy drops it, he instantly becomes more attractive, but when a girl drops it, she becomes less so. 2. Sex magazine at Harvard.
Mary was talking to a hot guy at the club the other night, but as soon as she dropped the h-bomb, he said he had to go.