producing or covered with lathery sweat or saliva from exhaustion or disease; "the rabid animal's frothing mouth"
covered with or resembling small bubbles as from being agitated by beating or heating; "the bubbling candy mixture"; "a cup of foaming cocoa"; "frothy milkshakes"; "frothy waves"; "spumy surf"
disapproval If you refer to an activity or object as froth, you disapprove of it because it appears exciting or attractive, but has very little real value or importance. No substance at all, just froth