pump iron


Also found in: Thesaurus, Medical, Idioms, Encyclopedia.
Related to pump iron: pump some iron
click for a larger image
pump1
top: jet pump
bottom: centrifugal pump

pump 1

 (pŭmp)
n.
1. A machine or device for raising, compressing, or transferring fluids.
2. Physiology A molecular mechanism for the active transport of ions or molecules across a cell membrane.
3. Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
4. Informal The heart.
5. Informal The place where consumers purchase gasoline. Used with the: gas prices rising at the pump.
v. pumped, pump·ing, pumps
v.tr.
1. To cause to flow by means of a pump or pumplike organ or device: Derricks pumped oil out of the ground. The heart pumps blood throughout the body.
2. To draw, deliver, or pour forth: a writer who pumped out a new novel every year.
3. To propel, eject, or insert: pumped new life into the economy.
4. To cause to move with an up-and-down or back-and-forth motion: a bicyclist pumping the pedals; a piston pumping a shaft.
5. To push or pull (a brake or lever, for instance) rapidly: a driver pumping the brakes.
6. To shoot (bullets, for example) at or into: a gunner pumping rounds at a target.
7. Physics To raise (atoms or molecules) to a higher energy level by exposing them to electromagnetic radiation at a resonant frequency.
8. Physiology To transport (ions or molecules) against a concentration gradient by the expenditure of chemically stored energy.
9. To invest (money) repeatedly or persistently in something.
10. To question closely or persistently: pump a witness for secret information.
11. Informal To promote or publicize vigorously: The company pumped its new product on its website.
v.intr.
1. To operate a pump.
2. To move gas or liquid with a pump or a pumplike organ or device.
3. To move up and down or back and forth in a vigorous manner: My legs were pumping as I ran up the stairs.
4. To flow in spurts: Blood was pumping from the wound.
5. Sports To fake a throw, pass, or shot by moving the arm or arms without releasing the ball.
Phrasal Verb:
pump up
1. To inflate with gas by means of a pump: pump up a tire.
2. Slang To fill with enthusiasm, strength, or energy: The lively debate really pumped us up.
3. Sports To be actively involved in a bodybuilding program: athletes pumping up at the gym.
Idiom:
pump iron Sports
To lift weights.

[Middle English pumpe.]

pump′er n.

pump 2

 (pŭmp)
n.
A shoe that has a closed back and is cut low around the toes, usually with heels and no fastenings.

[Origin unknown.]

pump iron

vb
(Weightlifting) (intr) slang to exercise with weights; do body-building exercises
Translations
References in periodicals archive ?
Not the typical gym with 100's of members who pump iron, work out on machines or attend aerobic classes whenever they want to.
How annoying for the Scot that while he pumps fists and pretends to pump iron, Rafa pumps everything else.
Any schoolyard bully knows if you push somebody hard enough, they're going to go pump iron and come back and deck 'em," said Jones.