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Not quite an explosion but a release of gas producing excessive amounts of foam ejected at high velocity, usually causing quite a mess.

Generally used in reference to carbonated beverage foam but could refer to any type of foam.

Alt formes:
exfoamation, exfoam, exfoamed, exfoaming
Sarrah shook Jim's soda before he opened it, hoping to cause an exfoamation. It exfoamed all over him. He was not happy about his drink exfoaming.

Adding vinegar to baking soda can cause an exfoamation
by exaeta July 08, 2018
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