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A super rude name for people who get sick from gluten or wheat, like they're being punished by God for eating bad food.
'I'm not eating that crumbly thing you brought. I'm a B'naggert, not a fool.'
He threw up in the subway after eating a bagel. Classic B'naggert behavior.
She called the pizza delivery guy a B'naggert for putting garlic on her gluten-free crust.