"foamy" in the adjective sense
1. foaming, foamy, frothing
producing or covered with lathery sweat or saliva from exhaustion or disease
"the rabid animal's frothing mouth"
2. bubbling, bubbly, foaming, foamy, frothy, effervescing, spumy
emitting or filled with bubbles as from carbonation or fermentation
"bubbling champagne"
"foamy (or frothy) beer"
Source: WordNet® (An amazing lexical database of English)
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