under the pump

Under the pump - for being very busy, feeling the pressure (like that caused when using a pump to inflate), almost at bursting point.

How are ya, mate?

'Far out mate, been under the pump!'

by BVB1 February 14, 2019

Under The Pump

When you masturbate then do a backflip as you climax so that you ejaculate on your own face in mid-air.

Person 1: "Is that a bit of ranch dressing on your face?"
Person 2: "Nah, I've just been under the pump"

by Lord Of All Things Sasquatch November 9, 2020