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 mouthfluff outburst uppuddle upbubble ringwell upblow upbob upboil oversimmer upsteamed upsoap film