Definitions:
a piece of solid material fitting tightly into a hole and blocking it up

a device for making an electrical connection between an appliance and the mains, consisting of an insulated casing with metal pins that fit into holes in a socket

a piece of publicity promoting a product, event, or establishment

a piece of tobacco cut from a larger cake for chewing

a lure with one or more hooks attached.

a tired or old horse.

block or fill in (a hole or cavity)

mention (a product, event, or establishment) publicly in order to promote it

shoot or hit (someone or something)