A period characterized by a sudden increase in the number of posts made on the social media application Twitter about a particular issue, event, etc., especially one that is controversial in nature.
his comment sparked a Twitter storm as some fans jumped to her defence and others sided with him
Definition of Twitter storm in US English:
Twitter storm
noun
A period characterized by a sudden increase in the number of posts made on the social media application Twitter about a particular issue, event, etc., especially one that is controversial in nature.
his comment sparked a Twitter storm as some fans jumped to her defense and others sided with him