foam up
The phrase 'foam up' is often used to describe the formation of foam or froth on a liquid's surface and can also metaphorically refer to the emergence of situations.
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Definition
B2General
(informal)To produce a layer of small bubbles on the surface of a liquid.
Example
- When you mix soap with water, it will foam up quickly.
B2General
(informal)To become covered with or as if with foam.
Example
- The sea began to foam up as the waves grew stronger.
C1Figurative
(figurative)To emerge or develop suddenly.
Example
- Tensions in the room started to foam up as the debate continued.
Similar
Terms that have similar or relatively close meanings to "foam up":
fog upcream upbubble upfoam rubberfoam at the mouthfluff uppuff upflame upbubble underboil upsteam upsteaming upfroth at the gashfroth at the mouthfluff outburst uppuddle upbubble ringwell upblow upbob upboil oversoap offsimmer upsteamed upsoap film