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

somewhere in the pipes there is a plug of ice blocking the flow

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

the cable is fitted with a two-pin plug

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

he threw in a plug, boasting that the restaurant offered many entrées for under £5

a piece of tobacco cut from a larger cake for chewing

they sold chewing tobacco in bars and plugs

a lure with one or more hooks attached

a tired or old horse

block or fill in (a hole or cavity)

trucks arrived loaded with gravel to plug the hole and clear the road

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

during the show he plugged his new record

shoot or hit (someone or something)

he got plugged in the head while he was taking a nap