Quick definitions from WordNet (plug)
▸ noun: blockage consisting of an object designed to fill a hole tightly
▸ noun: an electrical device with two or three pins that is inserted in a socket to make an electrical connection
▸ noun: an upright hydrant for drawing water to use in fighting a fire
▸ noun: electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
▸ noun: an old or over-worked horse
▸ noun: blatant or sensational promotion
▸ noun: a wad of something chewable as tobacco
▸ verb: persist in working hard ("Students must plug away at this problem")
▸ verb: make a plug for; praise the qualities or in order to sell or promote
▸ verb: fill or close tightly with or as if with a plug ("Plug the hole")
▸ verb: deliver a quick blow to
▸ Also see plug
▸ noun: blockage consisting of an object designed to fill a hole tightly
▸ noun: an electrical device with two or three pins that is inserted in a socket to make an electrical connection
▸ noun: an upright hydrant for drawing water to use in fighting a fire
▸ noun: electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
▸ noun: an old or over-worked horse
▸ noun: blatant or sensational promotion
▸ noun: a wad of something chewable as tobacco
▸ verb: persist in working hard ("Students must plug away at this problem")
▸ verb: make a plug for; praise the qualities or in order to sell or promote
▸ verb: fill or close tightly with or as if with a plug ("Plug the hole")
▸ verb: deliver a quick blow to
▸ Also see plug