Going beserk and shooting a lot of people. term like "going postal". From the recent rash of school yard shootings.
When John lost his job he went 'schoolyard'
by Greatone May 29, 2007
1. A psychological condition characterized by a vigilant, sanctimonious, and solicitous predilection.
2. Rigorous in religious observance; marked by stern morality.
She's a schoolyard mother!
by Simon March 16, 2004

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