The Collaborative International Dictionary of English v.0.48:
bubbling \bubbling\ adj. 1. giving off bubbles; -- of a liquid. [Narrower terms: foaming, frothing; effervescent; boiling] [WordNet 1.5] 2. stimulatingly lively, witty, and entertaining; -- of people. Syn: effervescent, scintillating, sparkling, sparkly, vivacious. [WordNet 1.5]