a pin, bolt, or rod placed transversely through a chain, an eye or loop in a rope, etc., as to bind it temporarily to another chain or rope similarly treated.

a toggle joint, or a device having one.

an ornamental, rod-shaped button for inserting into a large buttonhole, loop, or frog, used esp. on sports clothes.

Theater .

Also called toggle rail. a wooden batten across the width of a flat, for strengthening the frame.

Also called toggle iron. a metal device for fastening a toggle rail to a frame.

to furnish with a toggle.

to bind or fasten with a toggle.

Informal . to turn, twist, or manipulate a toggle switch; dial or turn the switch of (an appliance)

He toggled the TV between the baseball game and the news.