A louse (Pediculus humanus).
Any germ or contaminant, real or imagined, especially from the opposite gender (for pre-pubescent children).
A sideswiper, a type of telegraph key.
A nest-building female American coot (counterpart to cooter).
A bug, an insect.
A person of Southern European, Mediterranean, Middle Eastern, or Southeastern European ancestry.
Any dark-skinned person: originally specifically an Indian, but later also anybody of North African, Mediterranean, or Middle Eastern ancestry.
A pollywog, or sailor who has never crossed the Equator.
A minor illness caused by bacteria, virus, intestinal parasite, etc.
A person who is not a Scientologist.