Wiktionary
vb. 1 (context transitive English) To inflate by means of a pump. 2 (context transitive English) To inflate with a pumping action. 3 (context transitive figuratively English) To excite a person or group to a frenzy. 4 (context intransitive bodybuilding English): To cause one's muscles to swell by means of focussed weightlifting.
Usage examples of "pump up".
All treasure found was to be kept by the Philippine government to decrease the debt burden and pump up the sagging economy devastated by the incalculable financial rape of the Marcos reign.
Even with her bottomless reservoir of anger to draw upon, Micky wasn't able to pump up any rage at the accusation that philosophical motives drove her to character assassination.
I used an awful lot of power in my attempt to pump up the balloons.
The lever opened a seal at the bottom of the bowl and the pedal let it pump up salt water to wash the bowl clean.
I suggest that before it gets too horribly dark, you pump up some water, clean both of us up, and get us both some of the food that's waiting.
A sniffer is simply a device that can tap into the network, pump up the signal and send it to the waiting arms of Max.
We have two of them with us, along with a compressor to pump up the tanks.
Not unless they pump up their output power to two or three times their normal operational mode, sir.