What is the meaning of bubbling?

verb

• Form, produce, or emit bubbles.
  • usage: "The soup was bubbling"
  • synonyms: bubble
• Flow in an irregular current with a bubbling noise.
  • usage: "babbling brooks"
  • synonyms: ripple, babble, guggle, burble, bubble, gurgle
• Rise in bubbles or as if in bubbles.
  • usage: "bubble to the surface"
  • synonyms: bubble
• Cause to form bubbles.
  • usage: "bubble gas through a liquid"
  • synonyms: bubble
• Expel gas from the stomach.
  • usage: "In China it is polite to burp at the table"
  • synonyms: burp, bubble, belch, eruct

adjective

• Emitting or filled with bubbles as from carbonation or fermentation.
  • usage: "bubbling champagne"; "foamy (or frothy) beer"
  • synonyms: bubbly, foaming, foamy, frothy, effervescing, spumy
• Marked by high spirits or excitement.
  • usage: "his fertile effervescent mind"; "scintillating personality"; "a row of sparkly cheerleaders"
  • synonyms: effervescent, frothy, scintillating, sparkly