Verb
1. operate like a pump; move up and down, like a handle or a pedal
2. deliver forth;
"pump bullets into the dummy"3. draw or pour with a pump
4. supply in great quantities;
"Pump money into a project"5. flow intermittently
6. move up and down;
"The athlete pumps weights in the gym"7. raise (gases oor fluids) with a pump
8. question persistently;
"She pumped the witnesses for information"