What is the meaning of plugged?

verb

• Fill or close tightly with or as if with a plug.
  • usage: "plug the hole"; "stop up the leak"
  • synonyms: plug, stop up, secure
• Persist in working hard.
  • usage: "Students must plug away at this problem"
  • synonyms: plug, plug away
• Deliver a quick blow to.
  • usage: "he punched me in the stomach"
  • synonyms: punch, plug
• Make a plug for; praise the qualities or in order to sell or promote.
  • synonyms: plug
• Insert a plug into.
  • usage: "plug the wall"
  • synonyms: plug
• Insert as a plug.
  • usage: "She plugged a cork in the wine bottle"
  • synonyms: plug

adjective

• Of a coin. ( altered by the insertion of a plug of base metal)
• Completely obstructed or closed off.
  • usage: "the storm was responsible for many blocked roads and bridges"; "the drain was plugged"
  • synonyms: blocked