Heads meaning : The part of the body of an animal or human which contains the brain, mouth and main sense organs. The topmost, foremost, or leading part. (social, metonymy) A leader or expert. A significant or important part. Headway; progress. Topic; subject. Denouement; crisis. (fluid dynamics) Pressure and energy. Fellatio or cunnilingus; oral sex. The glans penis. A heavy or habitual user of illicit drugs. Power; armed force. A pair of speakers worn over or in the ears so only the wearer can hear the sound. That part of older sailing ships forward of the forecastle and around the beak, used by the crew as their lavatory; still used as the word for toilets on a ship. The side of a coin that bears the picture of the head of state or similar. Draft scheme of a bill before it is formally introduced to a parliament. Tiles laid at the eaves of a house. A shouted warning that something is falling from above, mind your heads.