- 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
- insert a plug into;
"plug the wall"
- insert as a plug;
"She plugged a cork in the wine bottle"