Meaning of plug

Definition of plug

(noun) blockage consisting of an object designed to fill a hole tightly
a wad of something chewable as tobacco
blatant or sensational promotion
electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
an electrical device with two or three pins that is inserted in a socket to make an electrical connection
an upright hydrant for drawing water to use in fighting a fire
an old or over-worked horse
(verb) fill or close tightly with or as if with a plug; "plug the hole"; "stop up the leak"
persist in working hard; "Students must plug away at this problem"
deliver a quick blow to; "he punched me in the stomach"
make a plug for; praise the qualities or in order to sell or promote
replace the center of a coin with a baser metal; "plug a nickle"
insert a plug into; "plug the wall"
insert as a plug; "She plugged a cork in the wine bottle"

Other information on plug

WIKIPEDIA results for plug
Amazon results for plug