Your heart is a single organ, but it acts as a double pump.

They also forced him to shoot lots of double pumps when he got near the basket.

He can dunk it with a reverse double pump.

He had the arteries and veins to serve a double pump.

A double pump is the basic move to sink, or initiate, one end of the boat.

The move is initiated with a double pump, though on more powerful features little initiation will be necessary.

The move is usually initiated with a double pump, but may also be initiated from a stall.

One partial solution to this problem has been to double pump the bus.

Wasn't no more than how, sometimes, a man trying to hit a tricky pitch will kinda take a double pump before he swings.