noun

• (bodybuilding, climbing) A swelling of the muscles caused by increased blood flow following high intensity weightlifting.
  "Want a skin-stretching pump? Up the volume by using high-rep sets. A great pump is better than coming."
• (colloquial) A ride on a bicycle given to a passenger, usually on the handlebars or fender.
  "She gave the other girl a pump on her new bike."
• (US, slang) The heart.
• (obsolete, vulgar, British slang) The vagina.
  "Thus to and again to our paſtime we went, / And my Cards I play'd fairly to Jenny's content; / I work'd at her Pump till my Sucker grew dry, / Then I left pumping, a good Reaſon why."

verb

• (transitive, intransitive) To use a pump; to move (water or other liquid) by means of a pump.
  "I've been pumping for over a minute but the water isn't coming through."
• (transitive) To inject or pour (something) into someone or something in a manner similar to a pump.
  "The underlying cause of the warming is human activities pumping carbon dioxide and other greenhouse gases into the atmosphere, scientists say. But the reasons why marine heating is speeding up now are far from clear."
• (obsolete) To put (a person or part of the body) under a stream of water from a pump, as a punishment or as a form of medical treatment; to force a pump of water upon or on someone.
  "Pump him soundly, impudent Fellow."
• (transitive) To gain something, especially information, from (a person) by persistent questioning.
  "But pump not me for politics."

noun

• (British) A low-top shoe with a rubber sole and a canvas upper; a low-top canvas sneaker.
• (chiefly Canada, US) A type of women's shoe which leaves the instep uncovered and has a relatively high heel, especially a stiletto (with a very high and thin heel)
  "She was wearing a lovely new pair of pumps."