Pump meaning : A device for moving or compressing a liquid or gas. An instance of the action of a pump; one stroke of a pump; any action similar to pumping A device for dispensing liquid or gas to be sold, particularly fuel. A swelling of the muscles caused by increased blood flow following high intensity weightlifting. A ride on a bicycle given to a passenger, usually on the handlebars or fender. The heart. (British slang) The vagina. To use a pump to move (liquid or gas). (often followed by up) To fill with air. To move rhythmically, as the motion of a pump. To shake (a person's hand) vigorously. To gain information from (a person) by persistent questioning. To use a pump to move liquid or gas. To be going very well. To kick, throw or hit the ball far and high. To pass gas; to fart. To pass (messages) into a program so that it can obey them. (British slang) To copulate. To weightlift.