froth2 verb [intransitiveI] 1 (also froth up)DFDHC if a liquid froths, it produces or contains a lot of small bubbles on top 起泡沫 When you first open the bottle the beer will froth for a few seconds. 刚打开瓶盖时,啤酒会起几秒钟的泡沫。
2. HBHif someone’s mouth froths, saliva comes out as small white bubbles 吐白沫
3 froth at the mouth b) informalANGRY to be extremely angry 七窍生烟 froth at the mouth• Access problems and the odd bolt on Lakeland mountain crags have had activists frothing at the mouth.• He died at a friend's flat in Rock Ferry after going into convulsions and frothing at the mouth.• He then started frothing at the mouth and had a fit.• With a strangled, gargling shriek, Carradine fell over, frothing at the mouth, arms waving.• Mortally wounded, frothing at the mouth, grinding his teeth in pain, he chose the floor instead.• Hoomey thought he could easily start frothing at the mouth, the way his colour had drained.• Then, last June, she keeled over frothing at the mouth while out partying with pals in a London club.