Frothy

a.	1.	Full of foam or froth, or consisting of froth or light bubbles; spumous; foamy.
	2.	Not firm or solid; soft; unstable.
	3.	Of the nature of froth; light; empty; unsubstantial; as, a frothy speaker or harangue.

Adj.	1.	frothy - emitting or filled with bubbles as from carbonation or fermentation; "bubbling champagne"; "foamy (or frothy) beer" Synonyms: bubbling, bubbly, effervescing, foaming, foamy
	2.	frothy - relating to or containing gas bubbles Synonyms: foamy

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