1 definition by Snape, Snape, Severus Snape

a group of four dazzling young adults who enjoy cupcakes, puns and sartorialising. usually involves 3 especially good female friends, each of whom are truly fabulous, and one wombat who tags along because he has no other friends.

a hpm is a person, hpm are a group, the hpms are the group.
i'm going out with hpm today
by Snape, Snape, Severus Snape October 8, 2007
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