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Webster 1913 Edition

Adj.

Frothy; foamy; spumy, like yeast.

Adj.

Frothy; foamy; spumy; like yeast.

yeasty ‎(comparative yeastier, superlative yeastiest)

Having or resembling yeast.
Foamy and frothy.
- 1819, Lord Byron, Don Juan, III.58:
  The Ocean when its yeasty war is waging / Is awful to the vessel near the rock [...].
Emotionally bubbling over (as with exuberance)
Trivial.

1602 : William Shakespeare, Hamlet , act V scene 2

Thus has he, and many more of the same breed that I

now 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

having or resembling yeast

foamy and frothy

emotionally bubbling over

trivial