yeasty

adj

1. Having or resembling yeast.
2. Foamy and frothy.

   “The Ocean when its yeasty war is waging / Is awful to the vessel near the rock [...].”

3. Emotionally bubbling over (as with exuberance)
4. Trivial.

   “Thus has he, and many more of the same breed that I know the drossy age dotes on, only got the tune of the time and, out of an habit of encounter, a kind of yeasty collection, which carries them through and through the most profane and winnowed opinions”