Top definition
An even lower level of Nationalism, Tribalism, and Localism. It is pride for one's gang or group.
"There is a lot of groupism in LA gangs."
by zman4593 June 03, 2016
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2
the belief that one group is superior to another group
The human brain's tendency to promote participation in groups (groupophilia) naturally extends to intolerance of other groups (groupophobia) and the belief that one's own group is superior to another group (groupism).
by Luke Indago August 06, 2016
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