Meaning Of Plug

n.

Any piece of wood, metal, or other substance used to stop or fill a hole; a stopple.

n.

A flat oblong cake of pressed tobacco.

n.

A high, tapering silk hat.

n.

A worthless horse.

n.

A block of wood let into a wall, to afford a hold for nails.

v. t.

To stop with a plug; to make tight by stopping a hole.