Top Definition
Opposing the establishment.
"What're you doing in my house?!"
"You know. Trespassing. Invading your collective privacy. Disestablishmentarianism."
"Say wha?"
by Dave September 13, 2004
the practice of being against the separation of church and state.
You practice disestablishmentarianism.
by HOMESLICEkillaA July 29, 2005

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