East coast slang for an
annoying pest who no matter how much you try and get rid of, persists and continues to annoy. Usually every "
clique" or friend group has one and although they put on an act while around the "gu"; they ignore him/her at all costs and
joke about how much of a "gu" that person is. In addition to having no friends, the "gu" is the epitimy of grossness and therefore has zero game with the ladies.