What is "doubling up"

Usage examples of "doubling up".

Seeing that she had dulled them with her breath she lifted up her petticoat and doubling up over her hat she gave a quick little polish to each fruit in turn.

I knew the skyward jut of shoulder, the curve of elevated hip, the doubling up of one knee intimately.

She was taking extra courses herself, doubling up, but all we know for sure is that she and Brun quarrelled the night before the field exercise in escape and evasion.

Jonnie had already started doubling up platforms in places, one to receive and one to fire.

Yes, they were doubling up blast cord over the far crater edge and then another one of them was doing the same thing on the near crater edge.

Elizabeth joined her mid-morning and worked until eight at night, and with Kelly doubling up on weekends and filling in on their off days, they kept the store covered.

If nothing else, all his fellow smiths are doubling up or more in rooms while he has a whole up-time house to himself and his apprentice.

With the women on board, the officers and nobles had been doubling up in quarters, so Pickens and a new bosun's mate, Gregory, shared the midshipman's bunk.

He was in shock, chilled and shivering so he could hardly keep from doubling up.

I could remember shooting four to five tunes, but eight shots had been fired, showing I'd been doubling up.